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Finding the Fourth Proportional to 608,865.72, 840,572.55 and 367,209.78

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Solution

The fourth proportional to 608,865.72, 840,572.55 and 367,209.78 is: 506,953.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,865.72 : 840,572.55 = 367,209.78 : x
  2. Step 2: Convert to fraction form
    608,865.72/840,572.55 = 367,209.78/x
  3. Step 3: Cross multiply
    608,865.72x = 840,572.55 × 367,209.78
  4. Step 4: Simplify right side
    608,865.72x = 308,666,461,159.54
  5. Step 5: Solve for x
    x = 308,666,461,159.54/608,865.72
  6. Step 6: Final answer
    x = 506,953.26

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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.