Home / 918,591.70-1,267,654.80-510,731.20

Finding the Fourth Proportional to 918,591.70, 1,267,654.80 and 510,731.20

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Solution

The fourth proportional to 918,591.70, 1,267,654.80 and 510,731.20 is: 704,808.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,591.70 : 1,267,654.80 = 510,731.20 : x
  2. Step 2: Convert to fraction form
    918,591.70/1,267,654.80 = 510,731.20/x
  3. Step 3: Cross multiply
    918,591.70x = 1,267,654.80 × 510,731.20
  4. Step 4: Simplify right side
    918,591.70x = 647,430,857,189.76
  5. Step 5: Solve for x
    x = 647,430,857,189.76/918,591.70
  6. Step 6: Final answer
    x = 704,808.09

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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.