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Finding the Fourth Proportional to 900,898.88, 1,244,260.86 and 613,920.76

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Solution

The fourth proportional to 900,898.88, 1,244,260.86 and 613,920.76 is: 847,906.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,898.88 : 1,244,260.86 = 613,920.76 : x
  2. Step 2: Convert to fraction form
    900,898.88/1,244,260.86 = 613,920.76/x
  3. Step 3: Cross multiply
    900,898.88x = 1,244,260.86 × 613,920.76
  4. Step 4: Simplify right side
    900,898.88x = 763,877,572,809.45
  5. Step 5: Solve for x
    x = 763,877,572,809.45/900,898.88
  6. Step 6: Final answer
    x = 847,906.01

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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.