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Finding the Fourth Proportional to 615,695.04, 849,646.80 and 347,423.04

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Solution

The fourth proportional to 615,695.04, 849,646.80 and 347,423.04 is: 479,436.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,695.04 : 849,646.80 = 347,423.04 : x
  2. Step 2: Convert to fraction form
    615,695.04/849,646.80 = 347,423.04/x
  3. Step 3: Cross multiply
    615,695.04x = 849,646.80 × 347,423.04
  4. Step 4: Simplify right side
    615,695.04x = 295,186,874,182.27
  5. Step 5: Solve for x
    x = 295,186,874,182.27/615,695.04
  6. Step 6: Final answer
    x = 479,436.82

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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.