Home / 860,070.30-1,288,331.55-504,005.10

Finding the Fourth Proportional to 860,070.30, 1,288,331.55 and 504,005.10

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Solution

The fourth proportional to 860,070.30, 1,288,331.55 and 504,005.10 is: 754,968.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,070.30 : 1,288,331.55 = 504,005.10 : x
  2. Step 2: Convert to fraction form
    860,070.30/1,288,331.55 = 504,005.10/x
  3. Step 3: Cross multiply
    860,070.30x = 1,288,331.55 × 504,005.10
  4. Step 4: Simplify right side
    860,070.30x = 649,325,671,690.91
  5. Step 5: Solve for x
    x = 649,325,671,690.91/860,070.30
  6. Step 6: Final answer
    x = 754,968.14

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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.