Home / 736,742.40-1,105,113.60-512,356.20

Finding the Fourth Proportional to 736,742.40, 1,105,113.60 and 512,356.20

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Solution

The fourth proportional to 736,742.40, 1,105,113.60 and 512,356.20 is: 768,534.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    736,742.40 : 1,105,113.60 = 512,356.20 : x
  2. Step 2: Convert to fraction form
    736,742.40/1,105,113.60 = 512,356.20/x
  3. Step 3: Cross multiply
    736,742.40x = 1,105,113.60 × 512,356.20
  4. Step 4: Simplify right side
    736,742.40x = 566,211,804,664.32
  5. Step 5: Solve for x
    x = 566,211,804,664.32/736,742.40
  6. Step 6: Final answer
    x = 768,534.30

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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.