Home / 758,785.32-1,047,611.88-486,970.38

Finding the Fourth Proportional to 758,785.32, 1,047,611.88 and 486,970.38

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Solution

The fourth proportional to 758,785.32, 1,047,611.88 and 486,970.38 is: 672,332.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,785.32 : 1,047,611.88 = 486,970.38 : x
  2. Step 2: Convert to fraction form
    758,785.32/1,047,611.88 = 486,970.38/x
  3. Step 3: Cross multiply
    758,785.32x = 1,047,611.88 × 486,970.38
  4. Step 4: Simplify right side
    758,785.32x = 510,155,955,296.11
  5. Step 5: Solve for x
    x = 510,155,955,296.11/758,785.32
  6. Step 6: Final answer
    x = 672,332.40

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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.