Home / 869,345.16-1,199,695.51-487,372.02

Finding the Fourth Proportional to 869,345.16, 1,199,695.51 and 487,372.02

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Solution

The fourth proportional to 869,345.16, 1,199,695.51 and 487,372.02 is: 672,572.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,345.16 : 1,199,695.51 = 487,372.02 : x
  2. Step 2: Convert to fraction form
    869,345.16/1,199,695.51 = 487,372.02/x
  3. Step 3: Cross multiply
    869,345.16x = 1,199,695.51 × 487,372.02
  4. Step 4: Simplify right side
    869,345.16x = 584,698,015,658.29
  5. Step 5: Solve for x
    x = 584,698,015,658.29/869,345.16
  6. Step 6: Final answer
    x = 672,572.93

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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.