Home / 579,056.96-868,041.12-312,417.92

Finding the Fourth Proportional to 579,056.96, 868,041.12 and 312,417.92

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Solution

The fourth proportional to 579,056.96, 868,041.12 and 312,417.92 is: 468,333.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,056.96 : 868,041.12 = 312,417.92 : x
  2. Step 2: Convert to fraction form
    579,056.96/868,041.12 = 312,417.92/x
  3. Step 3: Cross multiply
    579,056.96x = 868,041.12 × 312,417.92
  4. Step 4: Simplify right side
    579,056.96x = 271,191,601,184.87
  5. Step 5: Solve for x
    x = 271,191,601,184.87/579,056.96
  6. Step 6: Final answer
    x = 468,333.20

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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.