Home / 728,037.40-1,092,056.10-686,703.10

Finding the Fourth Proportional to 728,037.40, 1,092,056.10 and 686,703.10

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Solution

The fourth proportional to 728,037.40, 1,092,056.10 and 686,703.10 is: 1,030,054.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,037.40 : 1,092,056.10 = 686,703.10 : x
  2. Step 2: Convert to fraction form
    728,037.40/1,092,056.10 = 686,703.10/x
  3. Step 3: Cross multiply
    728,037.40x = 1,092,056.10 × 686,703.10
  4. Step 4: Simplify right side
    728,037.40x = 749,918,309,243.91
  5. Step 5: Solve for x
    x = 749,918,309,243.91/728,037.40
  6. Step 6: Final answer
    x = 1,030,054.65

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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.