Home / 865,606.20-1,298,409.30-824,271.90

Finding the Fourth Proportional to 865,606.20, 1,298,409.30 and 824,271.90

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Solution

The fourth proportional to 865,606.20, 1,298,409.30 and 824,271.90 is: 1,236,407.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,606.20 : 1,298,409.30 = 824,271.90 : x
  2. Step 2: Convert to fraction form
    865,606.20/1,298,409.30 = 824,271.90/x
  3. Step 3: Cross multiply
    865,606.20x = 1,298,409.30 × 824,271.90
  4. Step 4: Simplify right side
    865,606.20x = 1,070,242,300,688.67
  5. Step 5: Solve for x
    x = 1,070,242,300,688.67/865,606.20
  6. Step 6: Final answer
    x = 1,236,407.85

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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.