Home / 817,602.80-1,226,404.20-318,966.80

Finding the Fourth Proportional to 817,602.80, 1,226,404.20 and 318,966.80

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Solution

The fourth proportional to 817,602.80, 1,226,404.20 and 318,966.80 is: 478,450.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,602.80 : 1,226,404.20 = 318,966.80 : x
  2. Step 2: Convert to fraction form
    817,602.80/1,226,404.20 = 318,966.80/x
  3. Step 3: Cross multiply
    817,602.80x = 1,226,404.20 × 318,966.80
  4. Step 4: Simplify right side
    817,602.80x = 391,182,223,180.56
  5. Step 5: Solve for x
    x = 391,182,223,180.56/817,602.80
  6. Step 6: Final answer
    x = 478,450.20

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1.5x scale

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.