Home / 718,916.80-1,077,856.80-403,470.40

Finding the Fourth Proportional to 718,916.80, 1,077,856.80 and 403,470.40

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Solution

The fourth proportional to 718,916.80, 1,077,856.80 and 403,470.40 is: 604,914.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,916.80 : 1,077,856.80 = 403,470.40 : x
  2. Step 2: Convert to fraction form
    718,916.80/1,077,856.80 = 403,470.40/x
  3. Step 3: Cross multiply
    718,916.80x = 1,077,856.80 × 403,470.40
  4. Step 4: Simplify right side
    718,916.80x = 434,883,314,238.72
  5. Step 5: Solve for x
    x = 434,883,314,238.72/718,916.80
  6. Step 6: Final answer
    x = 604,914.66

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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.