Home / 558,779.36-771,115.56-304,132.40

Finding the Fourth Proportional to 558,779.36, 771,115.56 and 304,132.40

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Solution

The fourth proportional to 558,779.36, 771,115.56 and 304,132.40 is: 419,702.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,779.36 : 771,115.56 = 304,132.40 : x
  2. Step 2: Convert to fraction form
    558,779.36/771,115.56 = 304,132.40/x
  3. Step 3: Cross multiply
    558,779.36x = 771,115.56 × 304,132.40
  4. Step 4: Simplify right side
    558,779.36x = 234,521,225,940.14
  5. Step 5: Solve for x
    x = 234,521,225,940.14/558,779.36
  6. Step 6: Final answer
    x = 419,702.74

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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.