Home / 724,276.66-999,548.50-401,986.78

Finding the Fourth Proportional to 724,276.66, 999,548.50 and 401,986.78

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Solution

The fourth proportional to 724,276.66, 999,548.50 and 401,986.78 is: 554,767.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,276.66 : 999,548.50 = 401,986.78 : x
  2. Step 2: Convert to fraction form
    724,276.66/999,548.50 = 401,986.78/x
  3. Step 3: Cross multiply
    724,276.66x = 999,548.50 × 401,986.78
  4. Step 4: Simplify right side
    724,276.66x = 401,805,282,968.83
  5. Step 5: Solve for x
    x = 401,805,282,968.83/724,276.66
  6. Step 6: Final answer
    x = 554,767.68

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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.