Home / 746,430.80-1,119,905.40-326,008.40

Finding the Fourth Proportional to 746,430.80, 1,119,905.40 and 326,008.40

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Solution

The fourth proportional to 746,430.80, 1,119,905.40 and 326,008.40 is: 489,125.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,430.80 : 1,119,905.40 = 326,008.40 : x
  2. Step 2: Convert to fraction form
    746,430.80/1,119,905.40 = 326,008.40/x
  3. Step 3: Cross multiply
    746,430.80x = 1,119,905.40 × 326,008.40
  4. Step 4: Simplify right side
    746,430.80x = 365,098,567,605.36
  5. Step 5: Solve for x
    x = 365,098,567,605.36/746,430.80
  6. Step 6: Final answer
    x = 489,125.81

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1.5x scale

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.