Home / 724,272.95-999,543.40-401,983.07

Finding the Fourth Proportional to 724,272.95, 999,543.40 and 401,983.07

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Solution

The fourth proportional to 724,272.95, 999,543.40 and 401,983.07 is: 554,762.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,272.95 : 999,543.40 = 401,983.07 : x
  2. Step 2: Convert to fraction form
    724,272.95/999,543.40 = 401,983.07/x
  3. Step 3: Cross multiply
    724,272.95x = 999,543.40 × 401,983.07
  4. Step 4: Simplify right side
    724,272.95x = 401,799,518,527.56
  5. Step 5: Solve for x
    x = 401,799,518,527.56/724,272.95
  6. Step 6: Final answer
    x = 554,762.56

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1.5x scale

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.