Home / 858,432.80-1,286,547.60-479,352.80

Finding the Fourth Proportional to 858,432.80, 1,286,547.60 and 479,352.80

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Solution

The fourth proportional to 858,432.80, 1,286,547.60 and 479,352.80 is: 718,414.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,432.80 : 1,286,547.60 = 479,352.80 : x
  2. Step 2: Convert to fraction form
    858,432.80/1,286,547.60 = 479,352.80/x
  3. Step 3: Cross multiply
    858,432.80x = 1,286,547.60 × 479,352.80
  4. Step 4: Simplify right side
    858,432.80x = 616,710,194,393.28
  5. Step 5: Solve for x
    x = 616,710,194,393.28/858,432.80
  6. Step 6: Final answer
    x = 718,414.06

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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.