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Finding the Fourth Proportional to 747,897, 1,121,845.50 and 222,585

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Solution

The fourth proportional to 747,897, 1,121,845.50 and 222,585 is: 333,877.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,897 : 1,121,845.50 = 222,585 : x
  2. Step 2: Convert to fraction form
    747,897/1,121,845.50 = 222,585/x
  3. Step 3: Cross multiply
    747,897x = 1,121,845.50 × 222,585
  4. Step 4: Simplify right side
    747,897x = 249,705,980,617.50
  5. Step 5: Solve for x
    x = 249,705,980,617.50/747,897
  6. Step 6: Final answer
    x = 333,877.50

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1.5x scale

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.