Home / 1,108,815.60-1,663,223.40-478,441.20

Finding the Fourth Proportional to 1,108,815.60, 1,663,223.40 and 478,441.20

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Solution

The fourth proportional to 1,108,815.60, 1,663,223.40 and 478,441.20 is: 717,661.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,815.60 : 1,663,223.40 = 478,441.20 : x
  2. Step 2: Convert to fraction form
    1,108,815.60/1,663,223.40 = 478,441.20/x
  3. Step 3: Cross multiply
    1,108,815.60x = 1,663,223.40 × 478,441.20
  4. Step 4: Simplify right side
    1,108,815.60x = 795,754,599,364.08
  5. Step 5: Solve for x
    x = 795,754,599,364.08/1,108,815.60
  6. Step 6: Final answer
    x = 717,661.80

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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.