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Finding the Fourth Proportional to 528,030.08, 791,980.80 and 154,053.44

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Solution

The fourth proportional to 528,030.08, 791,980.80 and 154,053.44 is: 231,061.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,030.08 : 791,980.80 = 154,053.44 : x
  2. Step 2: Convert to fraction form
    528,030.08/791,980.80 = 154,053.44/x
  3. Step 3: Cross multiply
    528,030.08x = 791,980.80 × 154,053.44
  4. Step 4: Simplify right side
    528,030.08x = 122,007,366,653.95
  5. Step 5: Solve for x
    x = 122,007,366,653.95/528,030.08
  6. Step 6: Final answer
    x = 231,061.39

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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.