Home / 898,489.88-1,239,769.65-530,915.87

Finding the Fourth Proportional to 898,489.88, 1,239,769.65 and 530,915.87

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Solution

The fourth proportional to 898,489.88, 1,239,769.65 and 530,915.87 is: 732,577.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,489.88 : 1,239,769.65 = 530,915.87 : x
  2. Step 2: Convert to fraction form
    898,489.88/1,239,769.65 = 530,915.87/x
  3. Step 3: Cross multiply
    898,489.88x = 1,239,769.65 × 530,915.87
  4. Step 4: Simplify right side
    898,489.88x = 658,213,382,329.35
  5. Step 5: Solve for x
    x = 658,213,382,329.35/898,489.88
  6. Step 6: Final answer
    x = 732,577.40

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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.