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Finding the Fourth Proportional to 565,888.65, 780,931.56 and 307,768.04

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Solution

The fourth proportional to 565,888.65, 780,931.56 and 307,768.04 is: 424,722.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,888.65 : 780,931.56 = 307,768.04 : x
  2. Step 2: Convert to fraction form
    565,888.65/780,931.56 = 307,768.04/x
  3. Step 3: Cross multiply
    565,888.65x = 780,931.56 × 307,768.04
  4. Step 4: Simplify right side
    565,888.65x = 240,345,775,595.34
  5. Step 5: Solve for x
    x = 240,345,775,595.34/565,888.65
  6. Step 6: Final answer
    x = 424,722.74

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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.