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Finding the Fourth Proportional to 532,605.51, 734,991.71 and 290,888.15

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Solution

The fourth proportional to 532,605.51, 734,991.71 and 290,888.15 is: 401,423.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,605.51 : 734,991.71 = 290,888.15 : x
  2. Step 2: Convert to fraction form
    532,605.51/734,991.71 = 290,888.15/x
  3. Step 3: Cross multiply
    532,605.51x = 734,991.71 × 290,888.15
  4. Step 4: Simplify right side
    532,605.51x = 213,800,373,657.84
  5. Step 5: Solve for x
    x = 213,800,373,657.84/532,605.51
  6. Step 6: Final answer
    x = 401,423.51

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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.