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Finding the Fourth Proportional to 606,956.40, 910,985.40 and 307,645.20

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Solution

The fourth proportional to 606,956.40, 910,985.40 and 307,645.20 is: 461,746.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,956.40 : 910,985.40 = 307,645.20 : x
  2. Step 2: Convert to fraction form
    606,956.40/910,985.40 = 307,645.20/x
  3. Step 3: Cross multiply
    606,956.40x = 910,985.40 × 307,645.20
  4. Step 4: Simplify right side
    606,956.40x = 280,260,285,580.08
  5. Step 5: Solve for x
    x = 280,260,285,580.08/606,956.40
  6. Step 6: Final answer
    x = 461,746.98

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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.