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Finding the Fourth Proportional to 615,676.59, 849,921.66 and 357,503.25

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Solution

The fourth proportional to 615,676.59, 849,921.66 and 357,503.25 is: 493,521.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,676.59 : 849,921.66 = 357,503.25 : x
  2. Step 2: Convert to fraction form
    615,676.59/849,921.66 = 357,503.25/x
  3. Step 3: Cross multiply
    615,676.59x = 849,921.66 × 357,503.25
  4. Step 4: Simplify right side
    615,676.59x = 303,849,751,445.79
  5. Step 5: Solve for x
    x = 303,849,751,445.79/615,676.59
  6. Step 6: Final answer
    x = 493,521.69

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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.