Home / 865,848.80-1,298,773.20-304,810.40

Finding the Fourth Proportional to 865,848.80, 1,298,773.20 and 304,810.40

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Solution

The fourth proportional to 865,848.80, 1,298,773.20 and 304,810.40 is: 457,215.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,848.80 : 1,298,773.20 = 304,810.40 : x
  2. Step 2: Convert to fraction form
    865,848.80/1,298,773.20 = 304,810.40/x
  3. Step 3: Cross multiply
    865,848.80x = 1,298,773.20 × 304,810.40
  4. Step 4: Simplify right side
    865,848.80x = 395,879,578,601.28
  5. Step 5: Solve for x
    x = 395,879,578,601.28/865,848.80
  6. Step 6: Final answer
    x = 457,215.60

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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.