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Finding the Fourth Proportional to 532,020.09, 734,205.43 and 290,315.93

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Solution

The fourth proportional to 532,020.09, 734,205.43 and 290,315.93 is: 400,645.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,020.09 : 734,205.43 = 290,315.93 : x
  2. Step 2: Convert to fraction form
    532,020.09/734,205.43 = 290,315.93/x
  3. Step 3: Cross multiply
    532,020.09x = 734,205.43 × 290,315.93
  4. Step 4: Simplify right side
    532,020.09x = 213,151,532,221.50
  5. Step 5: Solve for x
    x = 213,151,532,221.50/532,020.09
  6. Step 6: Final answer
    x = 400,645.65

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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.