Home / 723,140.83-997,918.45-400,848.13

Finding the Fourth Proportional to 723,140.83, 997,918.45 and 400,848.13

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Solution

The fourth proportional to 723,140.83, 997,918.45 and 400,848.13 is: 553,161.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,140.83 : 997,918.45 = 400,848.13 : x
  2. Step 2: Convert to fraction form
    723,140.83/997,918.45 = 400,848.13/x
  3. Step 3: Cross multiply
    723,140.83x = 997,918.45 × 400,848.13
  4. Step 4: Simplify right side
    723,140.83x = 400,013,744,575.00
  5. Step 5: Solve for x
    x = 400,013,744,575.00/723,140.83
  6. Step 6: Final answer
    x = 553,161.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.