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Finding the Fourth Proportional to 704,478.58, 972,180.80 and 382,188.59

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Solution

The fourth proportional to 704,478.58, 972,180.80 and 382,188.59 is: 527,420.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,478.58 : 972,180.80 = 382,188.59 : x
  2. Step 2: Convert to fraction form
    704,478.58/972,180.80 = 382,188.59/x
  3. Step 3: Cross multiply
    704,478.58x = 972,180.80 × 382,188.59
  4. Step 4: Simplify right side
    704,478.58x = 371,556,409,696.58
  5. Step 5: Solve for x
    x = 371,556,409,696.58/704,478.58
  6. Step 6: Final answer
    x = 527,420.45

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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.