Home / 723,112.30-997,966.54-400,884.68

Finding the Fourth Proportional to 723,112.30, 997,966.54 and 400,884.68

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Solution

The fourth proportional to 723,112.30, 997,966.54 and 400,884.68 is: 553,260.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,112.30 : 997,966.54 = 400,884.68 : x
  2. Step 2: Convert to fraction form
    723,112.30/997,966.54 = 400,884.68/x
  3. Step 3: Cross multiply
    723,112.30x = 997,966.54 × 400,884.68
  4. Step 4: Simplify right side
    723,112.30x = 400,069,497,038.61
  5. Step 5: Solve for x
    x = 400,069,497,038.61/723,112.30
  6. Step 6: Final answer
    x = 553,260.53

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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.