Home / 1,039,966-1,559,948.28-391,664.47

Finding the Fourth Proportional to 1,039,966, 1,559,948.28 and 391,664.47

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Solution

The fourth proportional to 1,039,966, 1,559,948.28 and 391,664.47 is: 587,496.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,966 : 1,559,948.28 = 391,664.47 : x
  2. Step 2: Convert to fraction form
    1,039,966/1,559,948.28 = 391,664.47/x
  3. Step 3: Cross multiply
    1,039,966x = 1,559,948.28 × 391,664.47
  4. Step 4: Simplify right side
    1,039,966x = 610,976,316,313.61
  5. Step 5: Solve for x
    x = 610,976,316,313.61/1,039,966
  6. Step 6: Final answer
    x = 587,496.43

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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.