Home / 724,743.08-999,984.42-438,257.16

Finding the Fourth Proportional to 724,743.08, 999,984.42 and 438,257.16

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Solution

The fourth proportional to 724,743.08, 999,984.42 and 438,257.16 is: 604,697.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,743.08 : 999,984.42 = 438,257.16 : x
  2. Step 2: Convert to fraction form
    724,743.08/999,984.42 = 438,257.16/x
  3. Step 3: Cross multiply
    724,743.08x = 999,984.42 × 438,257.16
  4. Step 4: Simplify right side
    724,743.08x = 438,250,331,953.45
  5. Step 5: Solve for x
    x = 438,250,331,953.45/724,743.08
  6. Step 6: Final answer
    x = 604,697.50

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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.