Home / 1,272,801.60-1,756,339.20-729,064.80

Finding the Fourth Proportional to 1,272,801.60, 1,756,339.20 and 729,064.80

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Solution

The fourth proportional to 1,272,801.60, 1,756,339.20 and 729,064.80 is: 1,006,036.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,801.60 : 1,756,339.20 = 729,064.80 : x
  2. Step 2: Convert to fraction form
    1,272,801.60/1,756,339.20 = 729,064.80/x
  3. Step 3: Cross multiply
    1,272,801.60x = 1,756,339.20 × 729,064.80
  4. Step 4: Simplify right side
    1,272,801.60x = 1,280,485,087,580.16
  5. Step 5: Solve for x
    x = 1,280,485,087,580.16/1,272,801.60
  6. Step 6: Final answer
    x = 1,006,036.67

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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.