Home / 847,645.10-1,272,451.80-488,102.30

Finding the Fourth Proportional to 847,645.10, 1,272,451.80 and 488,102.30

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Solution

The fourth proportional to 847,645.10, 1,272,451.80 and 488,102.30 is: 732,720.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,645.10 : 1,272,451.80 = 488,102.30 : x
  2. Step 2: Convert to fraction form
    847,645.10/1,272,451.80 = 488,102.30/x
  3. Step 3: Cross multiply
    847,645.10x = 1,272,451.80 × 488,102.30
  4. Step 4: Simplify right side
    847,645.10x = 621,086,650,219.14
  5. Step 5: Solve for x
    x = 621,086,650,219.14/847,645.10
  6. Step 6: Final answer
    x = 732,720.16

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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.