Home / 976,803.60-1,464,986.70-642,192.60

Finding the Fourth Proportional to 976,803.60, 1,464,986.70 and 642,192.60

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Solution

The fourth proportional to 976,803.60, 1,464,986.70 and 642,192.60 is: 963,145.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,803.60 : 1,464,986.70 = 642,192.60 : x
  2. Step 2: Convert to fraction form
    976,803.60/1,464,986.70 = 642,192.60/x
  3. Step 3: Cross multiply
    976,803.60x = 1,464,986.70 × 642,192.60
  4. Step 4: Simplify right side
    976,803.60x = 940,803,617,838.42
  5. Step 5: Solve for x
    x = 940,803,617,838.42/976,803.60
  6. Step 6: Final answer
    x = 963,145.12

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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.