Home / 860,172.32-1,187,039.18-478,199.10

Finding the Fourth Proportional to 860,172.32, 1,187,039.18 and 478,199.10

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Solution

The fourth proportional to 860,172.32, 1,187,039.18 and 478,199.10 is: 659,915.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,172.32 : 1,187,039.18 = 478,199.10 : x
  2. Step 2: Convert to fraction form
    860,172.32/1,187,039.18 = 478,199.10/x
  3. Step 3: Cross multiply
    860,172.32x = 1,187,039.18 × 478,199.10
  4. Step 4: Simplify right side
    860,172.32x = 567,641,065,149.74
  5. Step 5: Solve for x
    x = 567,641,065,149.74/860,172.32
  6. Step 6: Final answer
    x = 659,915.53

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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.