Home / 1,156,499.60-1,732,999.80-978,040.40

Finding the Fourth Proportional to 1,156,499.60, 1,732,999.80 and 978,040.40

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Solution

The fourth proportional to 1,156,499.60, 1,732,999.80 and 978,040.40 is: 1,465,580.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,156,499.60 : 1,732,999.80 = 978,040.40 : x
  2. Step 2: Convert to fraction form
    1,156,499.60/1,732,999.80 = 978,040.40/x
  3. Step 3: Cross multiply
    1,156,499.60x = 1,732,999.80 × 978,040.40
  4. Step 4: Simplify right side
    1,156,499.60x = 1,694,943,817,591.92
  5. Step 5: Solve for x
    x = 1,694,943,817,591.92/1,156,499.60
  6. Step 6: Final answer
    x = 1,465,580.98

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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.