Home / 778,848.30-1,168,272.45-329,419.80

Finding the Fourth Proportional to 778,848.30, 1,168,272.45 and 329,419.80

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Solution

The fourth proportional to 778,848.30, 1,168,272.45 and 329,419.80 is: 494,129.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,848.30 : 1,168,272.45 = 329,419.80 : x
  2. Step 2: Convert to fraction form
    778,848.30/1,168,272.45 = 329,419.80/x
  3. Step 3: Cross multiply
    778,848.30x = 1,168,272.45 × 329,419.80
  4. Step 4: Simplify right side
    778,848.30x = 384,852,076,824.51
  5. Step 5: Solve for x
    x = 384,852,076,824.51/778,848.30
  6. Step 6: Final answer
    x = 494,129.70

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1.5x scale

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.