Home / 717,827.20-1,075,444.80-418,062.40

Finding the Fourth Proportional to 717,827.20, 1,075,444.80 and 418,062.40

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Solution

The fourth proportional to 717,827.20, 1,075,444.80 and 418,062.40 is: 626,338.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,827.20 : 1,075,444.80 = 418,062.40 : x
  2. Step 2: Convert to fraction form
    717,827.20/1,075,444.80 = 418,062.40/x
  3. Step 3: Cross multiply
    717,827.20x = 1,075,444.80 × 418,062.40
  4. Step 4: Simplify right side
    717,827.20x = 449,603,034,155.52
  5. Step 5: Solve for x
    x = 449,603,034,155.52/717,827.20
  6. Step 6: Final answer
    x = 626,338.81

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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.