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Finding the Fourth Proportional to 615,325.65, 849,192.02 and 343,446.58

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Solution

The fourth proportional to 615,325.65, 849,192.02 and 343,446.58 is: 473,980.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,325.65 : 849,192.02 = 343,446.58 : x
  2. Step 2: Convert to fraction form
    615,325.65/849,192.02 = 343,446.58/x
  3. Step 3: Cross multiply
    615,325.65x = 849,192.02 × 343,446.58
  4. Step 4: Simplify right side
    615,325.65x = 291,652,093,315.06
  5. Step 5: Solve for x
    x = 291,652,093,315.06/615,325.65
  6. Step 6: Final answer
    x = 473,980.07

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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.