Home / 860,210.68-1,187,023.50-478,214.20

Finding the Fourth Proportional to 860,210.68, 1,187,023.50 and 478,214.20

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Solution

The fourth proportional to 860,210.68, 1,187,023.50 and 478,214.20 is: 659,898.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,210.68 : 1,187,023.50 = 478,214.20 : x
  2. Step 2: Convert to fraction form
    860,210.68/1,187,023.50 = 478,214.20/x
  3. Step 3: Cross multiply
    860,210.68x = 1,187,023.50 × 478,214.20
  4. Step 4: Simplify right side
    860,210.68x = 567,651,493,433.70
  5. Step 5: Solve for x
    x = 567,651,493,433.70/860,210.68
  6. Step 6: Final answer
    x = 659,898.22

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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.