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Finding the Fourth Proportional to 658,461.32, 908,676.65 and 356,655.32

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Solution

The fourth proportional to 658,461.32, 908,676.65 and 356,655.32 is: 492,184.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,461.32 : 908,676.65 = 356,655.32 : x
  2. Step 2: Convert to fraction form
    658,461.32/908,676.65 = 356,655.32/x
  3. Step 3: Cross multiply
    658,461.32x = 908,676.65 × 356,655.32
  4. Step 4: Simplify right side
    658,461.32x = 324,084,355,055.62
  5. Step 5: Solve for x
    x = 324,084,355,055.62/658,461.32
  6. Step 6: Final answer
    x = 492,184.35

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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.