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Finding the Fourth Proportional to 659,963.48, 910,762.53 and 430,667.47

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Solution

The fourth proportional to 659,963.48, 910,762.53 and 430,667.47 is: 594,329.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,963.48 : 910,762.53 = 430,667.47 : x
  2. Step 2: Convert to fraction form
    659,963.48/910,762.53 = 430,667.47/x
  3. Step 3: Cross multiply
    659,963.48x = 910,762.53 × 430,667.47
  4. Step 4: Simplify right side
    659,963.48x = 392,235,791,388.82
  5. Step 5: Solve for x
    x = 392,235,791,388.82/659,963.48
  6. Step 6: Final answer
    x = 594,329.54

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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.