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Finding the Fourth Proportional to 630,312.02, 869,836.86 and 343,838.10

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Solution

The fourth proportional to 630,312.02, 869,836.86 and 343,838.10 is: 474,500.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,312.02 : 869,836.86 = 343,838.10 : x
  2. Step 2: Convert to fraction form
    630,312.02/869,836.86 = 343,838.10/x
  3. Step 3: Cross multiply
    630,312.02x = 869,836.86 × 343,838.10
  4. Step 4: Simplify right side
    630,312.02x = 299,083,053,252.37
  5. Step 5: Solve for x
    x = 299,083,053,252.37/630,312.02
  6. Step 6: Final answer
    x = 474,500.00

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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.