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Finding the Fourth Proportional to 615,289.19, 849,101.01 and 343,368.59

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Solution

The fourth proportional to 615,289.19, 849,101.01 and 343,368.59 is: 473,849.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,289.19 : 849,101.01 = 343,368.59 : x
  2. Step 2: Convert to fraction form
    615,289.19/849,101.01 = 343,368.59/x
  3. Step 3: Cross multiply
    615,289.19x = 849,101.01 × 343,368.59
  4. Step 4: Simplify right side
    615,289.19x = 291,554,616,571.28
  5. Step 5: Solve for x
    x = 291,554,616,571.28/615,289.19
  6. Step 6: Final answer
    x = 473,849.73

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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.