Home / 918,909.70-1,267,998.33-510,945.73

Finding the Fourth Proportional to 918,909.70, 1,267,998.33 and 510,945.73

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Solution

The fourth proportional to 918,909.70, 1,267,998.33 and 510,945.73 is: 705,051.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,909.70 : 1,267,998.33 = 510,945.73 : x
  2. Step 2: Convert to fraction form
    918,909.70/1,267,998.33 = 510,945.73/x
  3. Step 3: Cross multiply
    918,909.70x = 1,267,998.33 × 510,945.73
  4. Step 4: Simplify right side
    918,909.70x = 647,878,332,360.63
  5. Step 5: Solve for x
    x = 647,878,332,360.63/918,909.70
  6. Step 6: Final answer
    x = 705,051.14

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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.