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Finding the Fourth Proportional to 615,283.48, 849,089.61 and 343,348.50

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Solution

The fourth proportional to 615,283.48, 849,089.61 and 343,348.50 is: 473,820.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,283.48 : 849,089.61 = 343,348.50 : x
  2. Step 2: Convert to fraction form
    615,283.48/849,089.61 = 343,348.50/x
  3. Step 3: Cross multiply
    615,283.48x = 849,089.61 × 343,348.50
  4. Step 4: Simplify right side
    615,283.48x = 291,533,643,959.09
  5. Step 5: Solve for x
    x = 291,533,643,959.09/615,283.48
  6. Step 6: Final answer
    x = 473,820.04

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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.