Home / 914,780.15-1,262,404.07-506,888.80

Finding the Fourth Proportional to 914,780.15, 1,262,404.07 and 506,888.80

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Solution

The fourth proportional to 914,780.15, 1,262,404.07 and 506,888.80 is: 699,510.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,780.15 : 1,262,404.07 = 506,888.80 : x
  2. Step 2: Convert to fraction form
    914,780.15/1,262,404.07 = 506,888.80/x
  3. Step 3: Cross multiply
    914,780.15x = 1,262,404.07 × 506,888.80
  4. Step 4: Simplify right side
    914,780.15x = 639,898,484,157.42
  5. Step 5: Solve for x
    x = 639,898,484,157.42/914,780.15
  6. Step 6: Final answer
    x = 699,510.68

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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.