Home / 674,606.79-1,011,622.13-390,493.45

Finding the Fourth Proportional to 674,606.79, 1,011,622.13 and 390,493.45

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Solution

The fourth proportional to 674,606.79, 1,011,622.13 and 390,493.45 is: 585,573.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,606.79 : 1,011,622.13 = 390,493.45 : x
  2. Step 2: Convert to fraction form
    674,606.79/1,011,622.13 = 390,493.45/x
  3. Step 3: Cross multiply
    674,606.79x = 1,011,622.13 × 390,493.45
  4. Step 4: Simplify right side
    674,606.79x = 395,031,808,629.47
  5. Step 5: Solve for x
    x = 395,031,808,629.47/674,606.79
  6. Step 6: Final answer
    x = 585,573.43

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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.