Home / 651,268.20-976,902.30-402,436.20

Finding the Fourth Proportional to 651,268.20, 976,902.30 and 402,436.20

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Solution

The fourth proportional to 651,268.20, 976,902.30 and 402,436.20 is: 603,654.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,268.20 : 976,902.30 = 402,436.20 : x
  2. Step 2: Convert to fraction form
    651,268.20/976,902.30 = 402,436.20/x
  3. Step 3: Cross multiply
    651,268.20x = 976,902.30 × 402,436.20
  4. Step 4: Simplify right side
    651,268.20x = 393,140,849,383.26
  5. Step 5: Solve for x
    x = 393,140,849,383.26/651,268.20
  6. Step 6: Final answer
    x = 603,654.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.