Home / 509,598.02-763,836.53-209,915.15

Finding the Fourth Proportional to 509,598.02, 763,836.53 and 209,915.15

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Solution

The fourth proportional to 509,598.02, 763,836.53 and 209,915.15 is: 314,641.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,598.02 : 763,836.53 = 209,915.15 : x
  2. Step 2: Convert to fraction form
    509,598.02/763,836.53 = 209,915.15/x
  3. Step 3: Cross multiply
    509,598.02x = 763,836.53 × 209,915.15
  4. Step 4: Simplify right side
    509,598.02x = 160,340,854,901.67
  5. Step 5: Solve for x
    x = 160,340,854,901.67/509,598.02
  6. Step 6: Final answer
    x = 314,641.84

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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.