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Finding the Fourth Proportional to 615,835.53, 849,820.55 and 347,546.25

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Solution

The fourth proportional to 615,835.53, 849,820.55 and 347,546.25 is: 479,595.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,835.53 : 849,820.55 = 347,546.25 : x
  2. Step 2: Convert to fraction form
    615,835.53/849,820.55 = 347,546.25/x
  3. Step 3: Cross multiply
    615,835.53x = 849,820.55 × 347,546.25
  4. Step 4: Simplify right side
    615,835.53x = 295,351,943,587.71
  5. Step 5: Solve for x
    x = 295,351,943,587.71/615,835.53
  6. Step 6: Final answer
    x = 479,595.49

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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.