Home / 874,352.30-1,312,111.65-400,793.90

Finding the Fourth Proportional to 874,352.30, 1,312,111.65 and 400,793.90

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Solution

The fourth proportional to 874,352.30, 1,312,111.65 and 400,793.90 is: 601,458.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,352.30 : 1,312,111.65 = 400,793.90 : x
  2. Step 2: Convert to fraction form
    874,352.30/1,312,111.65 = 400,793.90/x
  3. Step 3: Cross multiply
    874,352.30x = 1,312,111.65 × 400,793.90
  4. Step 4: Simplify right side
    874,352.30x = 525,886,345,438.94
  5. Step 5: Solve for x
    x = 525,886,345,438.94/874,352.30
  6. Step 6: Final answer
    x = 601,458.18

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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.