Home / 697,645.80-1,046,468.70-342,887.40

Finding the Fourth Proportional to 697,645.80, 1,046,468.70 and 342,887.40

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Solution

The fourth proportional to 697,645.80, 1,046,468.70 and 342,887.40 is: 514,331.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,645.80 : 1,046,468.70 = 342,887.40 : x
  2. Step 2: Convert to fraction form
    697,645.80/1,046,468.70 = 342,887.40/x
  3. Step 3: Cross multiply
    697,645.80x = 1,046,468.70 × 342,887.40
  4. Step 4: Simplify right side
    697,645.80x = 358,820,931,724.38
  5. Step 5: Solve for x
    x = 358,820,931,724.38/697,645.80
  6. Step 6: Final answer
    x = 514,331.10

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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.