Home / 1,039,520.10-1,559,280.15-638,861.70

Finding the Fourth Proportional to 1,039,520.10, 1,559,280.15 and 638,861.70

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Solution

The fourth proportional to 1,039,520.10, 1,559,280.15 and 638,861.70 is: 958,292.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,520.10 : 1,559,280.15 = 638,861.70 : x
  2. Step 2: Convert to fraction form
    1,039,520.10/1,559,280.15 = 638,861.70/x
  3. Step 3: Cross multiply
    1,039,520.10x = 1,559,280.15 × 638,861.70
  4. Step 4: Simplify right side
    1,039,520.10x = 996,164,367,405.26
  5. Step 5: Solve for x
    x = 996,164,367,405.26/1,039,520.10
  6. Step 6: Final answer
    x = 958,292.55

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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.