Home / 1,249,769.20-1,724,678.85-676,807.60

Finding the Fourth Proportional to 1,249,769.20, 1,724,678.85 and 676,807.60

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Solution

The fourth proportional to 1,249,769.20, 1,724,678.85 and 676,807.60 is: 933,993.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,769.20 : 1,724,678.85 = 676,807.60 : x
  2. Step 2: Convert to fraction form
    1,249,769.20/1,724,678.85 = 676,807.60/x
  3. Step 3: Cross multiply
    1,249,769.20x = 1,724,678.85 × 676,807.60
  4. Step 4: Simplify right side
    1,249,769.20x = 1,167,275,753,239.26
  5. Step 5: Solve for x
    x = 1,167,275,753,239.26/1,249,769.20
  6. Step 6: Final answer
    x = 933,993.06

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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.