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Finding the Fourth Proportional to 614,268.90, 921,403.35 and 348,548.40

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Solution

The fourth proportional to 614,268.90, 921,403.35 and 348,548.40 is: 522,822.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,268.90 : 921,403.35 = 348,548.40 : x
  2. Step 2: Convert to fraction form
    614,268.90/921,403.35 = 348,548.40/x
  3. Step 3: Cross multiply
    614,268.90x = 921,403.35 × 348,548.40
  4. Step 4: Simplify right side
    614,268.90x = 321,153,663,397.14
  5. Step 5: Solve for x
    x = 321,153,663,397.14/614,268.90
  6. Step 6: Final answer
    x = 522,822.60

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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.