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Finding the Fourth Proportional to 615,512.90, 849,549.48 and 360,946.10

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Solution

The fourth proportional to 615,512.90, 849,549.48 and 360,946.10 is: 498,188.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,512.90 : 849,549.48 = 360,946.10 : x
  2. Step 2: Convert to fraction form
    615,512.90/849,549.48 = 360,946.10/x
  3. Step 3: Cross multiply
    615,512.90x = 849,549.48 × 360,946.10
  4. Step 4: Simplify right side
    615,512.90x = 306,641,571,563.03
  5. Step 5: Solve for x
    x = 306,641,571,563.03/615,512.90
  6. Step 6: Final answer
    x = 498,188.70

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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.