Home / 918,008.30-1,377,012.45-899,345.90

Finding the Fourth Proportional to 918,008.30, 1,377,012.45 and 899,345.90

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Solution

The fourth proportional to 918,008.30, 1,377,012.45 and 899,345.90 is: 1,349,018.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,008.30 : 1,377,012.45 = 899,345.90 : x
  2. Step 2: Convert to fraction form
    918,008.30/1,377,012.45 = 899,345.90/x
  3. Step 3: Cross multiply
    918,008.30x = 1,377,012.45 × 899,345.90
  4. Step 4: Simplify right side
    918,008.30x = 1,238,410,501,156.46
  5. Step 5: Solve for x
    x = 1,238,410,501,156.46/918,008.30
  6. Step 6: Final answer
    x = 1,349,018.85

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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.