Home / 788,201.50-1,087,722.40-430,505.50

Finding the Fourth Proportional to 788,201.50, 1,087,722.40 and 430,505.50

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Solution

The fourth proportional to 788,201.50, 1,087,722.40 and 430,505.50 is: 594,099.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,201.50 : 1,087,722.40 = 430,505.50 : x
  2. Step 2: Convert to fraction form
    788,201.50/1,087,722.40 = 430,505.50/x
  3. Step 3: Cross multiply
    788,201.50x = 1,087,722.40 × 430,505.50
  4. Step 4: Simplify right side
    788,201.50x = 468,270,475,673.20
  5. Step 5: Solve for x
    x = 468,270,475,673.20/788,201.50
  6. Step 6: Final answer
    x = 594,099.95

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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.