Home / 651,362.40-977,821.20-367,279.20

Finding the Fourth Proportional to 651,362.40, 977,821.20 and 367,279.20

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Solution

The fourth proportional to 651,362.40, 977,821.20 and 367,279.20 is: 551,357.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,362.40 : 977,821.20 = 367,279.20 : x
  2. Step 2: Convert to fraction form
    651,362.40/977,821.20 = 367,279.20/x
  3. Step 3: Cross multiply
    651,362.40x = 977,821.20 × 367,279.20
  4. Step 4: Simplify right side
    651,362.40x = 359,133,388,079.04
  5. Step 5: Solve for x
    x = 359,133,388,079.04/651,362.40
  6. Step 6: Final answer
    x = 551,357.26

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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.