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Finding the Fourth Proportional to 707,999.52, 977,027.96 and 385,713.52

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Solution

The fourth proportional to 707,999.52, 977,027.96 and 385,713.52 is: 532,278.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,999.52 : 977,027.96 = 385,713.52 : x
  2. Step 2: Convert to fraction form
    707,999.52/977,027.96 = 385,713.52/x
  3. Step 3: Cross multiply
    707,999.52x = 977,027.96 × 385,713.52
  4. Step 4: Simplify right side
    707,999.52x = 376,852,893,590.02
  5. Step 5: Solve for x
    x = 376,852,893,590.02/707,999.52
  6. Step 6: Final answer
    x = 532,278.46

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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.