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Finding the Fourth Proportional to 597,458.40, 896,187.60 and 420,165.60

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Solution

The fourth proportional to 597,458.40, 896,187.60 and 420,165.60 is: 630,248.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    597,458.40 : 896,187.60 = 420,165.60 : x
  2. Step 2: Convert to fraction form
    597,458.40/896,187.60 = 420,165.60/x
  3. Step 3: Cross multiply
    597,458.40x = 896,187.60 × 420,165.60
  4. Step 4: Simplify right side
    597,458.40x = 376,547,200,666.56
  5. Step 5: Solve for x
    x = 376,547,200,666.56/597,458.40
  6. Step 6: Final answer
    x = 630,248.40

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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.