Home / 760,147.40-1,140,221.10-748,337.60

Finding the Fourth Proportional to 760,147.40, 1,140,221.10 and 748,337.60

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Solution

The fourth proportional to 760,147.40, 1,140,221.10 and 748,337.60 is: 1,122,506.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,147.40 : 1,140,221.10 = 748,337.60 : x
  2. Step 2: Convert to fraction form
    760,147.40/1,140,221.10 = 748,337.60/x
  3. Step 3: Cross multiply
    760,147.40x = 1,140,221.10 × 748,337.60
  4. Step 4: Simplify right side
    760,147.40x = 853,270,321,443.36
  5. Step 5: Solve for x
    x = 853,270,321,443.36/760,147.40
  6. Step 6: Final answer
    x = 1,122,506.40

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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.