Home / 951,140.88-1,312,566.12-521,413.20

Finding the Fourth Proportional to 951,140.88, 1,312,566.12 and 521,413.20

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Solution

The fourth proportional to 951,140.88, 1,312,566.12 and 521,413.20 is: 719,545.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    951,140.88 : 1,312,566.12 = 521,413.20 : x
  2. Step 2: Convert to fraction form
    951,140.88/1,312,566.12 = 521,413.20/x
  3. Step 3: Cross multiply
    951,140.88x = 1,312,566.12 × 521,413.20
  4. Step 4: Simplify right side
    951,140.88x = 684,389,300,840.78
  5. Step 5: Solve for x
    x = 684,389,300,840.78/951,140.88
  6. Step 6: Final answer
    x = 719,545.67

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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.