Home / 1,207,818.34-1,666,794.70-663,989.10

Finding the Fourth Proportional to 1,207,818.34, 1,666,794.70 and 663,989.10

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Solution

The fourth proportional to 1,207,818.34, 1,666,794.70 and 663,989.10 is: 916,307.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,818.34 : 1,666,794.70 = 663,989.10 : x
  2. Step 2: Convert to fraction form
    1,207,818.34/1,666,794.70 = 663,989.10/x
  3. Step 3: Cross multiply
    1,207,818.34x = 1,666,794.70 × 663,989.10
  4. Step 4: Simplify right side
    1,207,818.34x = 1,106,733,512,737.77
  5. Step 5: Solve for x
    x = 1,106,733,512,737.77/1,207,818.34
  6. Step 6: Final answer
    x = 916,307.92

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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.