Home / 679,934.20-1,019,901.30-637,943.80

Finding the Fourth Proportional to 679,934.20, 1,019,901.30 and 637,943.80

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Solution

The fourth proportional to 679,934.20, 1,019,901.30 and 637,943.80 is: 956,915.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,934.20 : 1,019,901.30 = 637,943.80 : x
  2. Step 2: Convert to fraction form
    679,934.20/1,019,901.30 = 637,943.80/x
  3. Step 3: Cross multiply
    679,934.20x = 1,019,901.30 × 637,943.80
  4. Step 4: Simplify right side
    679,934.20x = 650,639,710,946.94
  5. Step 5: Solve for x
    x = 650,639,710,946.94/679,934.20
  6. Step 6: Final answer
    x = 956,915.70

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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.