Home / 724,280.68-999,631.04-418,302.07

Finding the Fourth Proportional to 724,280.68, 999,631.04 and 418,302.07

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Solution

The fourth proportional to 724,280.68, 999,631.04 and 418,302.07 is: 577,328.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,280.68 : 999,631.04 = 418,302.07 : x
  2. Step 2: Convert to fraction form
    724,280.68/999,631.04 = 418,302.07/x
  3. Step 3: Cross multiply
    724,280.68x = 999,631.04 × 418,302.07
  4. Step 4: Simplify right side
    724,280.68x = 418,147,733,268.25
  5. Step 5: Solve for x
    x = 418,147,733,268.25/724,280.68
  6. Step 6: Final answer
    x = 577,328.30

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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.