Home / 477,145.40-658,686.10-302,803.24

Finding the Fourth Proportional to 477,145.40, 658,686.10 and 302,803.24

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Solution

The fourth proportional to 477,145.40, 658,686.10 and 302,803.24 is: 418,011.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,145.40 : 658,686.10 = 302,803.24 : x
  2. Step 2: Convert to fraction form
    477,145.40/658,686.10 = 302,803.24/x
  3. Step 3: Cross multiply
    477,145.40x = 658,686.10 × 302,803.24
  4. Step 4: Simplify right side
    477,145.40x = 199,452,285,222.96
  5. Step 5: Solve for x
    x = 199,452,285,222.96/477,145.40
  6. Step 6: Final answer
    x = 418,011.54

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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.