Home / 860,002.40-1,290,003.60-544,815.20

Finding the Fourth Proportional to 860,002.40, 1,290,003.60 and 544,815.20

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Solution

The fourth proportional to 860,002.40, 1,290,003.60 and 544,815.20 is: 817,222.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,002.40 : 1,290,003.60 = 544,815.20 : x
  2. Step 2: Convert to fraction form
    860,002.40/1,290,003.60 = 544,815.20/x
  3. Step 3: Cross multiply
    860,002.40x = 1,290,003.60 × 544,815.20
  4. Step 4: Simplify right side
    860,002.40x = 702,813,569,334.72
  5. Step 5: Solve for x
    x = 702,813,569,334.72/860,002.40
  6. Step 6: Final answer
    x = 817,222.80

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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.