Home / 840,107.95-1,159,436.46-517,809.76

Finding the Fourth Proportional to 840,107.95, 1,159,436.46 and 517,809.76

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Solution

The fourth proportional to 840,107.95, 1,159,436.46 and 517,809.76 is: 714,631.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,107.95 : 1,159,436.46 = 517,809.76 : x
  2. Step 2: Convert to fraction form
    840,107.95/1,159,436.46 = 517,809.76/x
  3. Step 3: Cross multiply
    840,107.95x = 1,159,436.46 × 517,809.76
  4. Step 4: Simplify right side
    840,107.95x = 600,367,516,283.86
  5. Step 5: Solve for x
    x = 600,367,516,283.86/840,107.95
  6. Step 6: Final answer
    x = 714,631.39

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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.