Home / 864,006.60-1,296,009.90-776,915.40

Finding the Fourth Proportional to 864,006.60, 1,296,009.90 and 776,915.40

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Solution

The fourth proportional to 864,006.60, 1,296,009.90 and 776,915.40 is: 1,165,373.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,006.60 : 1,296,009.90 = 776,915.40 : x
  2. Step 2: Convert to fraction form
    864,006.60/1,296,009.90 = 776,915.40/x
  3. Step 3: Cross multiply
    864,006.60x = 1,296,009.90 × 776,915.40
  4. Step 4: Simplify right side
    864,006.60x = 1,006,890,049,862.46
  5. Step 5: Solve for x
    x = 1,006,890,049,862.46/864,006.60
  6. Step 6: Final answer
    x = 1,165,373.10

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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.