Home / 1,182,432.03-1,631,756.13-638,567.76

Finding the Fourth Proportional to 1,182,432.03, 1,631,756.13 and 638,567.76

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Solution

The fourth proportional to 1,182,432.03, 1,631,756.13 and 638,567.76 is: 881,223.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182,432.03 : 1,631,756.13 = 638,567.76 : x
  2. Step 2: Convert to fraction form
    1,182,432.03/1,631,756.13 = 638,567.76/x
  3. Step 3: Cross multiply
    1,182,432.03x = 1,631,756.13 × 638,567.76
  4. Step 4: Simplify right side
    1,182,432.03x = 1,041,986,853,607.53
  5. Step 5: Solve for x
    x = 1,041,986,853,607.53/1,182,432.03
  6. Step 6: Final answer
    x = 881,223.47

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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.