Home / 385,280.64-577,920.96-104,799.36

Finding the Fourth Proportional to 385,280.64, 577,920.96 and 104,799.36

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Solution

The fourth proportional to 385,280.64, 577,920.96 and 104,799.36 is: 157,199.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,280.64 : 577,920.96 = 104,799.36 : x
  2. Step 2: Convert to fraction form
    385,280.64/577,920.96 = 104,799.36/x
  3. Step 3: Cross multiply
    385,280.64x = 577,920.96 × 104,799.36
  4. Step 4: Simplify right side
    385,280.64x = 60,565,746,738.59
  5. Step 5: Solve for x
    x = 60,565,746,738.59/385,280.64
  6. Step 6: Final answer
    x = 157,199.04

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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.