Home / 385,915.71-578,821.02-101,582.46

Finding the Fourth Proportional to 385,915.71, 578,821.02 and 101,582.46

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Solution

The fourth proportional to 385,915.71, 578,821.02 and 101,582.46 is: 152,359.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,915.71 : 578,821.02 = 101,582.46 : x
  2. Step 2: Convert to fraction form
    385,915.71/578,821.02 = 101,582.46/x
  3. Step 3: Cross multiply
    385,915.71x = 578,821.02 × 101,582.46
  4. Step 4: Simplify right side
    385,915.71x = 58,798,063,111.31
  5. Step 5: Solve for x
    x = 58,798,063,111.31/385,915.71
  6. Step 6: Final answer
    x = 152,359.86

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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.