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Finding the Fourth Proportional to 897,898.80, 1,348,403.40 and 477,994.80

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Solution

The fourth proportional to 897,898.80, 1,348,403.40 and 477,994.80 is: 717,820.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,898.80 : 1,348,403.40 = 477,994.80 : x
  2. Step 2: Convert to fraction form
    897,898.80/1,348,403.40 = 477,994.80/x
  3. Step 3: Cross multiply
    897,898.80x = 1,348,403.40 × 477,994.80
  4. Step 4: Simplify right side
    897,898.80x = 644,529,813,502.32
  5. Step 5: Solve for x
    x = 644,529,813,502.32/897,898.80
  6. Step 6: Final answer
    x = 717,820.11

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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.