Home / 758,648.79-1,046,956.50-419,138.91

Finding the Fourth Proportional to 758,648.79, 1,046,956.50 and 419,138.91

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Solution

The fourth proportional to 758,648.79, 1,046,956.50 and 419,138.91 is: 578,423.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,648.79 : 1,046,956.50 = 419,138.91 : x
  2. Step 2: Convert to fraction form
    758,648.79/1,046,956.50 = 419,138.91/x
  3. Step 3: Cross multiply
    758,648.79x = 1,046,956.50 × 419,138.91
  4. Step 4: Simplify right side
    758,648.79x = 438,820,206,227.42
  5. Step 5: Solve for x
    x = 438,820,206,227.42/758,648.79
  6. Step 6: Final answer
    x = 578,423.39

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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.