Home / 1,287,866.40-1,932,674.40-719,246.40

Finding the Fourth Proportional to 1,287,866.40, 1,932,674.40 and 719,246.40

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Solution

The fourth proportional to 1,287,866.40, 1,932,674.40 and 719,246.40 is: 1,079,358.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,866.40 : 1,932,674.40 = 719,246.40 : x
  2. Step 2: Convert to fraction form
    1,287,866.40/1,932,674.40 = 719,246.40/x
  3. Step 3: Cross multiply
    1,287,866.40x = 1,932,674.40 × 719,246.40
  4. Step 4: Simplify right side
    1,287,866.40x = 1,390,069,104,572.16
  5. Step 5: Solve for x
    x = 1,390,069,104,572.16/1,287,866.40
  6. Step 6: Final answer
    x = 1,079,358.16

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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.