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Finding the Fourth Proportional to 676,390.72, 933,436.08 and 370,483.84

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Solution

The fourth proportional to 676,390.72, 933,436.08 and 370,483.84 is: 511,276.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,390.72 : 933,436.08 = 370,483.84 : x
  2. Step 2: Convert to fraction form
    676,390.72/933,436.08 = 370,483.84/x
  3. Step 3: Cross multiply
    676,390.72x = 933,436.08 × 370,483.84
  4. Step 4: Simplify right side
    676,390.72x = 345,822,983,312.95
  5. Step 5: Solve for x
    x = 345,822,983,312.95/676,390.72
  6. Step 6: Final answer
    x = 511,276.95

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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.