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Finding the Fourth Proportional to 990,594, 1,367,019.72 and 537,885

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Solution

The fourth proportional to 990,594, 1,367,019.72 and 537,885 is: 742,281.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,594 : 1,367,019.72 = 537,885 : x
  2. Step 2: Convert to fraction form
    990,594/1,367,019.72 = 537,885/x
  3. Step 3: Cross multiply
    990,594x = 1,367,019.72 × 537,885
  4. Step 4: Simplify right side
    990,594x = 735,299,402,092.20
  5. Step 5: Solve for x
    x = 735,299,402,092.20/990,594
  6. Step 6: Final answer
    x = 742,281.30

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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.