Home / 887,373.84-1,330,061.28-437,140.80

Finding the Fourth Proportional to 887,373.84, 1,330,061.28 and 437,140.80

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Solution

The fourth proportional to 887,373.84, 1,330,061.28 and 437,140.80 is: 655,218.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,373.84 : 1,330,061.28 = 437,140.80 : x
  2. Step 2: Convert to fraction form
    887,373.84/1,330,061.28 = 437,140.80/x
  3. Step 3: Cross multiply
    887,373.84x = 1,330,061.28 × 437,140.80
  4. Step 4: Simplify right side
    887,373.84x = 581,424,051,988.22
  5. Step 5: Solve for x
    x = 581,424,051,988.22/887,373.84
  6. Step 6: Final answer
    x = 655,218.83

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Double scale
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Similar ratio
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1.5x scale

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.