Home / 918,686.61-1,267,844.94-510,879.69

Finding the Fourth Proportional to 918,686.61, 1,267,844.94 and 510,879.69

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Solution

The fourth proportional to 918,686.61, 1,267,844.94 and 510,879.69 is: 705,045.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,686.61 : 1,267,844.94 = 510,879.69 : x
  2. Step 2: Convert to fraction form
    918,686.61/1,267,844.94 = 510,879.69/x
  3. Step 3: Cross multiply
    918,686.61x = 1,267,844.94 × 510,879.69
  4. Step 4: Simplify right side
    918,686.61x = 647,716,229,915.27
  5. Step 5: Solve for x
    x = 647,716,229,915.27/918,686.61
  6. Step 6: Final answer
    x = 705,045.90

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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.