Home / 758,139.35-1,045,980.44-500,144.42

Finding the Fourth Proportional to 758,139.35, 1,045,980.44 and 500,144.42

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Solution

The fourth proportional to 758,139.35, 1,045,980.44 and 500,144.42 is: 690,033.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,139.35 : 1,045,980.44 = 500,144.42 : x
  2. Step 2: Convert to fraction form
    758,139.35/1,045,980.44 = 500,144.42/x
  3. Step 3: Cross multiply
    758,139.35x = 1,045,980.44 × 500,144.42
  4. Step 4: Simplify right side
    758,139.35x = 523,141,282,484.92
  5. Step 5: Solve for x
    x = 523,141,282,484.92/758,139.35
  6. Step 6: Final answer
    x = 690,033.15

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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.