Home / 977,448.36-1,465,712.46-378,689.88

Finding the Fourth Proportional to 977,448.36, 1,465,712.46 and 378,689.88

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Solution

The fourth proportional to 977,448.36, 1,465,712.46 and 378,689.88 is: 567,856.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,448.36 : 1,465,712.46 = 378,689.88 : x
  2. Step 2: Convert to fraction form
    977,448.36/1,465,712.46 = 378,689.88/x
  3. Step 3: Cross multiply
    977,448.36x = 1,465,712.46 × 378,689.88
  4. Step 4: Simplify right side
    977,448.36x = 555,050,475,591.91
  5. Step 5: Solve for x
    x = 555,050,475,591.91/977,448.36
  6. Step 6: Final answer
    x = 567,856.57

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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.