Home / 994,774.20-1,490,913.40-425,487.28

Finding the Fourth Proportional to 994,774.20, 1,490,913.40 and 425,487.28

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Solution

The fourth proportional to 994,774.20, 1,490,913.40 and 425,487.28 is: 637,697.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    994,774.20 : 1,490,913.40 = 425,487.28 : x
  2. Step 2: Convert to fraction form
    994,774.20/1,490,913.40 = 425,487.28/x
  3. Step 3: Cross multiply
    994,774.20x = 1,490,913.40 × 425,487.28
  4. Step 4: Simplify right side
    994,774.20x = 634,364,687,281.55
  5. Step 5: Solve for x
    x = 634,364,687,281.55/994,774.20
  6. Step 6: Final answer
    x = 637,697.17

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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.