Home / 652,022.20-977,450.10-427,490.20

Finding the Fourth Proportional to 652,022.20, 977,450.10 and 427,490.20

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Solution

The fourth proportional to 652,022.20, 977,450.10 and 427,490.20 is: 640,852.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,022.20 : 977,450.10 = 427,490.20 : x
  2. Step 2: Convert to fraction form
    652,022.20/977,450.10 = 427,490.20/x
  3. Step 3: Cross multiply
    652,022.20x = 977,450.10 × 427,490.20
  4. Step 4: Simplify right side
    652,022.20x = 417,850,338,739.02
  5. Step 5: Solve for x
    x = 417,850,338,739.02/652,022.20
  6. Step 6: Final answer
    x = 640,852.93

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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.