Home / 729,130.60-1,006,079.34-487,024.84

Finding the Fourth Proportional to 729,130.60, 1,006,079.34 and 487,024.84

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Solution

The fourth proportional to 729,130.60, 1,006,079.34 and 487,024.84 is: 672,013.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,130.60 : 1,006,079.34 = 487,024.84 : x
  2. Step 2: Convert to fraction form
    729,130.60/1,006,079.34 = 487,024.84/x
  3. Step 3: Cross multiply
    729,130.60x = 1,006,079.34 × 487,024.84
  4. Step 4: Simplify right side
    729,130.60x = 489,985,629,590.81
  5. Step 5: Solve for x
    x = 489,985,629,590.81/729,130.60
  6. Step 6: Final answer
    x = 672,013.53

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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.