Home / 850,079.61-1,172,985.30-487,518.75

Finding the Fourth Proportional to 850,079.61, 1,172,985.30 and 487,518.75

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Solution

The fourth proportional to 850,079.61, 1,172,985.30 and 487,518.75 is: 672,704.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,079.61 : 1,172,985.30 = 487,518.75 : x
  2. Step 2: Convert to fraction form
    850,079.61/1,172,985.30 = 487,518.75/x
  3. Step 3: Cross multiply
    850,079.61x = 1,172,985.30 × 487,518.75
  4. Step 4: Simplify right side
    850,079.61x = 571,852,327,224.38
  5. Step 5: Solve for x
    x = 571,852,327,224.38/850,079.61
  6. Step 6: Final answer
    x = 672,704.44

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1.5x scale

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.