Home / 674,254.15-930,499.04-387,774.50

Finding the Fourth Proportional to 674,254.15, 930,499.04 and 387,774.50

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Solution

The fourth proportional to 674,254.15, 930,499.04 and 387,774.50 is: 535,145.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,254.15 : 930,499.04 = 387,774.50 : x
  2. Step 2: Convert to fraction form
    674,254.15/930,499.04 = 387,774.50/x
  3. Step 3: Cross multiply
    674,254.15x = 930,499.04 × 387,774.50
  4. Step 4: Simplify right side
    674,254.15x = 360,823,796,303.42
  5. Step 5: Solve for x
    x = 360,823,796,303.42/674,254.15
  6. Step 6: Final answer
    x = 535,145.09

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1.5x scale

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.