Home / 977,951.79-1,466,643.11-378,779.31

Finding the Fourth Proportional to 977,951.79, 1,466,643.11 and 378,779.31

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Solution

The fourth proportional to 977,951.79, 1,466,643.11 and 378,779.31 is: 568,058.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,951.79 : 1,466,643.11 = 378,779.31 : x
  2. Step 2: Convert to fraction form
    977,951.79/1,466,643.11 = 378,779.31/x
  3. Step 3: Cross multiply
    977,951.79x = 1,466,643.11 × 378,779.31
  4. Step 4: Simplify right side
    977,951.79x = 555,534,063,328.16
  5. Step 5: Solve for x
    x = 555,534,063,328.16/977,951.79
  6. Step 6: Final answer
    x = 568,058.74

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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.