Home / 860,124.78-1,187,044.02-478,187.10

Finding the Fourth Proportional to 860,124.78, 1,187,044.02 and 478,187.10

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Solution

The fourth proportional to 860,124.78, 1,187,044.02 and 478,187.10 is: 659,938.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,124.78 : 1,187,044.02 = 478,187.10 : x
  2. Step 2: Convert to fraction form
    860,124.78/1,187,044.02 = 478,187.10/x
  3. Step 3: Cross multiply
    860,124.78x = 1,187,044.02 × 478,187.10
  4. Step 4: Simplify right side
    860,124.78x = 567,629,137,496.14
  5. Step 5: Solve for x
    x = 567,629,137,496.14/860,124.78
  6. Step 6: Final answer
    x = 659,938.13

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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.