Home / 977,407.83-1,348,023.12-687,977.52

Finding the Fourth Proportional to 977,407.83, 1,348,023.12 and 687,977.52

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Solution

The fourth proportional to 977,407.83, 1,348,023.12 and 687,977.52 is: 948,846.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,407.83 : 1,348,023.12 = 687,977.52 : x
  2. Step 2: Convert to fraction form
    977,407.83/1,348,023.12 = 687,977.52/x
  3. Step 3: Cross multiply
    977,407.83x = 1,348,023.12 × 687,977.52
  4. Step 4: Simplify right side
    977,407.83x = 927,409,603,000.26
  5. Step 5: Solve for x
    x = 927,409,603,000.26/977,407.83
  6. Step 6: Final answer
    x = 948,846.10

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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.