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Finding the Fourth Proportional to 648,281.70, 894,873.93 and 487,600.76

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Solution

The fourth proportional to 648,281.70, 894,873.93 and 487,600.76 is: 673,073.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,281.70 : 894,873.93 = 487,600.76 : x
  2. Step 2: Convert to fraction form
    648,281.70/894,873.93 = 487,600.76/x
  3. Step 3: Cross multiply
    648,281.70x = 894,873.93 × 487,600.76
  4. Step 4: Simplify right side
    648,281.70x = 436,341,208,780.87
  5. Step 5: Solve for x
    x = 436,341,208,780.87/648,281.70
  6. Step 6: Final answer
    x = 673,073.46

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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.