Home / 860,149.64-1,186,960.02-478,149.32

Finding the Fourth Proportional to 860,149.64, 1,186,960.02 and 478,149.32

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Solution

The fourth proportional to 860,149.64, 1,186,960.02 and 478,149.32 is: 659,820.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,149.64 : 1,186,960.02 = 478,149.32 : x
  2. Step 2: Convert to fraction form
    860,149.64/1,186,960.02 = 478,149.32/x
  3. Step 3: Cross multiply
    860,149.64x = 1,186,960.02 × 478,149.32
  4. Step 4: Simplify right side
    860,149.64x = 567,544,126,430.19
  5. Step 5: Solve for x
    x = 567,544,126,430.19/860,149.64
  6. Step 6: Final answer
    x = 659,820.22

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Double scale
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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.