Home / 1,272,688.78-1,756,206.66-749,316.80

Finding the Fourth Proportional to 1,272,688.78, 1,756,206.66 and 749,316.80

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Solution

The fourth proportional to 1,272,688.78, 1,756,206.66 and 749,316.80 is: 1,033,996.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,688.78 : 1,756,206.66 = 749,316.80 : x
  2. Step 2: Convert to fraction form
    1,272,688.78/1,756,206.66 = 749,316.80/x
  3. Step 3: Cross multiply
    1,272,688.78x = 1,756,206.66 × 749,316.80
  4. Step 4: Simplify right side
    1,272,688.78x = 1,315,955,154,609.89
  5. Step 5: Solve for x
    x = 1,315,955,154,609.89/1,272,688.78
  6. Step 6: Final answer
    x = 1,033,996.04

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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.