Home / 778,732.40-1,166,255.40-528,057.20

Finding the Fourth Proportional to 778,732.40, 1,166,255.40 and 528,057.20

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Solution

The fourth proportional to 778,732.40, 1,166,255.40 and 528,057.20 is: 790,835.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,732.40 : 1,166,255.40 = 528,057.20 : x
  2. Step 2: Convert to fraction form
    778,732.40/1,166,255.40 = 528,057.20/x
  3. Step 3: Cross multiply
    778,732.40x = 1,166,255.40 × 528,057.20
  4. Step 4: Simplify right side
    778,732.40x = 615,849,561,008.88
  5. Step 5: Solve for x
    x = 615,849,561,008.88/778,732.40
  6. Step 6: Final answer
    x = 790,835.93

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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.