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Finding the Fourth Proportional to 615,223.68, 849,007.53 and 343,275.18

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Solution

The fourth proportional to 615,223.68, 849,007.53 and 343,275.18 is: 473,719.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,223.68 : 849,007.53 = 343,275.18 : x
  2. Step 2: Convert to fraction form
    615,223.68/849,007.53 = 343,275.18/x
  3. Step 3: Cross multiply
    615,223.68x = 849,007.53 × 343,275.18
  4. Step 4: Simplify right side
    615,223.68x = 291,443,212,682.11
  5. Step 5: Solve for x
    x = 291,443,212,682.11/615,223.68
  6. Step 6: Final answer
    x = 473,719.11

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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.