Home / 916,085.90-1,373,740.05-442,916.30

Finding the Fourth Proportional to 916,085.90, 1,373,740.05 and 442,916.30

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Solution

The fourth proportional to 916,085.90, 1,373,740.05 and 442,916.30 is: 664,186.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,085.90 : 1,373,740.05 = 442,916.30 : x
  2. Step 2: Convert to fraction form
    916,085.90/1,373,740.05 = 442,916.30/x
  3. Step 3: Cross multiply
    916,085.90x = 1,373,740.05 × 442,916.30
  4. Step 4: Simplify right side
    916,085.90x = 608,451,860,107.82
  5. Step 5: Solve for x
    x = 608,451,860,107.82/916,085.90
  6. Step 6: Final answer
    x = 664,186.47

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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.