Home / 918,598.68-1,378,045.94-319,730.04

Finding the Fourth Proportional to 918,598.68, 1,378,045.94 and 319,730.04

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Solution

The fourth proportional to 918,598.68, 1,378,045.94 and 319,730.04 is: 479,646.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,598.68 : 1,378,045.94 = 319,730.04 : x
  2. Step 2: Convert to fraction form
    918,598.68/1,378,045.94 = 319,730.04/x
  3. Step 3: Cross multiply
    918,598.68x = 1,378,045.94 × 319,730.04
  4. Step 4: Simplify right side
    918,598.68x = 440,602,675,029.16
  5. Step 5: Solve for x
    x = 440,602,675,029.16/918,598.68
  6. Step 6: Final answer
    x = 479,646.54

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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.