Home / 1,069,130.40-1,603,695.60-321,079.20

Finding the Fourth Proportional to 1,069,130.40, 1,603,695.60 and 321,079.20

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Solution

The fourth proportional to 1,069,130.40, 1,603,695.60 and 321,079.20 is: 481,618.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,130.40 : 1,603,695.60 = 321,079.20 : x
  2. Step 2: Convert to fraction form
    1,069,130.40/1,603,695.60 = 321,079.20/x
  3. Step 3: Cross multiply
    1,069,130.40x = 1,603,695.60 × 321,079.20
  4. Step 4: Simplify right side
    1,069,130.40x = 514,913,300,291.52
  5. Step 5: Solve for x
    x = 514,913,300,291.52/1,069,130.40
  6. Step 6: Final answer
    x = 481,618.80

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.