Home / 971,678.59-1,340,909.98-536,118.37

Finding the Fourth Proportional to 971,678.59, 1,340,909.98 and 536,118.37

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Solution

The fourth proportional to 971,678.59, 1,340,909.98 and 536,118.37 is: 739,839.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,678.59 : 1,340,909.98 = 536,118.37 : x
  2. Step 2: Convert to fraction form
    971,678.59/1,340,909.98 = 536,118.37/x
  3. Step 3: Cross multiply
    971,678.59x = 1,340,909.98 × 536,118.37
  4. Step 4: Simplify right side
    971,678.59x = 718,886,472,794.33
  5. Step 5: Solve for x
    x = 718,886,472,794.33/971,678.59
  6. Step 6: Final answer
    x = 739,839.78

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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.