Home / 513,731.02-770,900.95-286,217.06

Finding the Fourth Proportional to 513,731.02, 770,900.95 and 286,217.06

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Solution

The fourth proportional to 513,731.02, 770,900.95 and 286,217.06 is: 429,495.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,731.02 : 770,900.95 = 286,217.06 : x
  2. Step 2: Convert to fraction form
    513,731.02/770,900.95 = 286,217.06/x
  3. Step 3: Cross multiply
    513,731.02x = 770,900.95 × 286,217.06
  4. Step 4: Simplify right side
    513,731.02x = 220,645,007,190.67
  5. Step 5: Solve for x
    x = 220,645,007,190.67/513,731.02
  6. Step 6: Final answer
    x = 429,495.20

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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.