Home / 498,316.76-687,461.40-304,732.93

Finding the Fourth Proportional to 498,316.76, 687,461.40 and 304,732.93

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Solution

The fourth proportional to 498,316.76, 687,461.40 and 304,732.93 is: 420,399.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,316.76 : 687,461.40 = 304,732.93 : x
  2. Step 2: Convert to fraction form
    498,316.76/687,461.40 = 304,732.93/x
  3. Step 3: Cross multiply
    498,316.76x = 687,461.40 × 304,732.93
  4. Step 4: Simplify right side
    498,316.76x = 209,492,123,246.60
  5. Step 5: Solve for x
    x = 209,492,123,246.60/498,316.76
  6. Step 6: Final answer
    x = 420,399.52

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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.