Home / 989,304.42-1,484,064.27-315,227.28

Finding the Fourth Proportional to 989,304.42, 1,484,064.27 and 315,227.28

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Solution

The fourth proportional to 989,304.42, 1,484,064.27 and 315,227.28 is: 472,875.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,304.42 : 1,484,064.27 = 315,227.28 : x
  2. Step 2: Convert to fraction form
    989,304.42/1,484,064.27 = 315,227.28/x
  3. Step 3: Cross multiply
    989,304.42x = 1,484,064.27 × 315,227.28
  4. Step 4: Simplify right side
    989,304.42x = 467,817,543,177.29
  5. Step 5: Solve for x
    x = 467,817,543,177.29/989,304.42
  6. Step 6: Final answer
    x = 472,875.22

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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.