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Finding the Fourth Proportional to 615,868.22, 849,774.87 and 343,894.27

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Solution

The fourth proportional to 615,868.22, 849,774.87 and 343,894.27 is: 474,505.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,868.22 : 849,774.87 = 343,894.27 : x
  2. Step 2: Convert to fraction form
    615,868.22/849,774.87 = 343,894.27/x
  3. Step 3: Cross multiply
    615,868.22x = 849,774.87 × 343,894.27
  4. Step 4: Simplify right side
    615,868.22x = 292,232,702,614.65
  5. Step 5: Solve for x
    x = 292,232,702,614.65/615,868.22
  6. Step 6: Final answer
    x = 474,505.25

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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.