Home / 865,264.22-1,298,228.72-609,342.40

Finding the Fourth Proportional to 865,264.22, 1,298,228.72 and 609,342.40

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Solution

The fourth proportional to 865,264.22, 1,298,228.72 and 609,342.40 is: 914,247.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,264.22 : 1,298,228.72 = 609,342.40 : x
  2. Step 2: Convert to fraction form
    865,264.22/1,298,228.72 = 609,342.40/x
  3. Step 3: Cross multiply
    865,264.22x = 1,298,228.72 × 609,342.40
  4. Step 4: Simplify right side
    865,264.22x = 791,065,795,267.27
  5. Step 5: Solve for x
    x = 791,065,795,267.27/865,264.22
  6. Step 6: Final answer
    x = 914,247.66

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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.