Home / 723,426.17-998,374.64-417,515.45

Finding the Fourth Proportional to 723,426.17, 998,374.64 and 417,515.45

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Solution

The fourth proportional to 723,426.17, 998,374.64 and 417,515.45 is: 576,198.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,426.17 : 998,374.64 = 417,515.45 : x
  2. Step 2: Convert to fraction form
    723,426.17/998,374.64 = 417,515.45/x
  3. Step 3: Cross multiply
    723,426.17x = 998,374.64 × 417,515.45
  4. Step 4: Simplify right side
    723,426.17x = 416,836,830,008.74
  5. Step 5: Solve for x
    x = 416,836,830,008.74/723,426.17
  6. Step 6: Final answer
    x = 576,198.17

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Double scale
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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.