Home / 753,582.12-1,039,955.12-409,424.86

Finding the Fourth Proportional to 753,582.12, 1,039,955.12 and 409,424.86

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Solution

The fourth proportional to 753,582.12, 1,039,955.12 and 409,424.86 is: 565,012.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,582.12 : 1,039,955.12 = 409,424.86 : x
  2. Step 2: Convert to fraction form
    753,582.12/1,039,955.12 = 409,424.86/x
  3. Step 3: Cross multiply
    753,582.12x = 1,039,955.12 × 409,424.86
  4. Step 4: Simplify right side
    753,582.12x = 425,783,480,200.45
  5. Step 5: Solve for x
    x = 425,783,480,200.45/753,582.12
  6. Step 6: Final answer
    x = 565,012.72

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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.