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Finding the Fourth Proportional to 464,430.56, 640,921.52 and 260,526.80

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Solution

The fourth proportional to 464,430.56, 640,921.52 and 260,526.80 is: 359,531.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,430.56 : 640,921.52 = 260,526.80 : x
  2. Step 2: Convert to fraction form
    464,430.56/640,921.52 = 260,526.80/x
  3. Step 3: Cross multiply
    464,430.56x = 640,921.52 × 260,526.80
  4. Step 4: Simplify right side
    464,430.56x = 166,977,232,656.74
  5. Step 5: Solve for x
    x = 166,977,232,656.74/464,430.56
  6. Step 6: Final answer
    x = 359,531.11

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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.