Home / 918,006.45-1,266,823.74-510,097.78

Finding the Fourth Proportional to 918,006.45, 1,266,823.74 and 510,097.78

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Solution

The fourth proportional to 918,006.45, 1,266,823.74 and 510,097.78 is: 703,920.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,006.45 : 1,266,823.74 = 510,097.78 : x
  2. Step 2: Convert to fraction form
    918,006.45/1,266,823.74 = 510,097.78/x
  3. Step 3: Cross multiply
    918,006.45x = 1,266,823.74 × 510,097.78
  4. Step 4: Simplify right side
    918,006.45x = 646,203,977,425.30
  5. Step 5: Solve for x
    x = 646,203,977,425.30/918,006.45
  6. Step 6: Final answer
    x = 703,920.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.