Home / 544,582.20-815,123.70-387,118.20

Finding the Fourth Proportional to 544,582.20, 815,123.70 and 387,118.20

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Solution

The fourth proportional to 544,582.20, 815,123.70 and 387,118.20 is: 579,433.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,582.20 : 815,123.70 = 387,118.20 : x
  2. Step 2: Convert to fraction form
    544,582.20/815,123.70 = 387,118.20/x
  3. Step 3: Cross multiply
    544,582.20x = 815,123.70 × 387,118.20
  4. Step 4: Simplify right side
    544,582.20x = 315,549,219,521.34
  5. Step 5: Solve for x
    x = 315,549,219,521.34/544,582.20
  6. Step 6: Final answer
    x = 579,433.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.