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Finding the Fourth Proportional to 608,332.51, 912,765.48 and 288,715.20

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Solution

The fourth proportional to 608,332.51, 912,765.48 and 288,715.20 is: 433,199.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,332.51 : 912,765.48 = 288,715.20 : x
  2. Step 2: Convert to fraction form
    608,332.51/912,765.48 = 288,715.20/x
  3. Step 3: Cross multiply
    608,332.51x = 912,765.48 × 288,715.20
  4. Step 4: Simplify right side
    608,332.51x = 263,529,268,111.30
  5. Step 5: Solve for x
    x = 263,529,268,111.30/608,332.51
  6. Step 6: Final answer
    x = 433,199.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.