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Finding the Fourth Proportional to 615,371.19, 849,213.03 and 343,439.07

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Solution

The fourth proportional to 615,371.19, 849,213.03 and 343,439.07 is: 473,946.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,371.19 : 849,213.03 = 343,439.07 : x
  2. Step 2: Convert to fraction form
    615,371.19/849,213.03 = 343,439.07/x
  3. Step 3: Cross multiply
    615,371.19x = 849,213.03 × 343,439.07
  4. Step 4: Simplify right side
    615,371.19x = 291,652,933,255.08
  5. Step 5: Solve for x
    x = 291,652,933,255.08/615,371.19
  6. Step 6: Final answer
    x = 473,946.36

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1.5x scale

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.