Home / 1,458,008.47-2,012,052.95-813,428.80

Finding the Fourth Proportional to 1,458,008.47, 2,012,052.95 and 813,428.80

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Solution

The fourth proportional to 1,458,008.47, 2,012,052.95 and 813,428.80 is: 1,122,532.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,458,008.47 : 2,012,052.95 = 813,428.80 : x
  2. Step 2: Convert to fraction form
    1,458,008.47/2,012,052.95 = 813,428.80/x
  3. Step 3: Cross multiply
    1,458,008.47x = 2,012,052.95 × 813,428.80
  4. Step 4: Simplify right side
    1,458,008.47x = 1,636,661,816,654.96
  5. Step 5: Solve for x
    x = 1,636,661,816,654.96/1,458,008.47
  6. Step 6: Final answer
    x = 1,122,532.45

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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.