Home / 755,555.30-1,133,332.95-657,140.30

Finding the Fourth Proportional to 755,555.30, 1,133,332.95 and 657,140.30

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Solution

The fourth proportional to 755,555.30, 1,133,332.95 and 657,140.30 is: 985,710.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,555.30 : 1,133,332.95 = 657,140.30 : x
  2. Step 2: Convert to fraction form
    755,555.30/1,133,332.95 = 657,140.30/x
  3. Step 3: Cross multiply
    755,555.30x = 1,133,332.95 × 657,140.30
  4. Step 4: Simplify right side
    755,555.30x = 744,758,754,762.89
  5. Step 5: Solve for x
    x = 744,758,754,762.89/755,555.30
  6. Step 6: Final answer
    x = 985,710.45

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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.