Home / 1,126,120.32-1,687,547.52-620,784

Finding the Fourth Proportional to 1,126,120.32, 1,687,547.52 and 620,784

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Solution

The fourth proportional to 1,126,120.32, 1,687,547.52 and 620,784 is: 930,275.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,120.32 : 1,687,547.52 = 620,784 : x
  2. Step 2: Convert to fraction form
    1,126,120.32/1,687,547.52 = 620,784/x
  3. Step 3: Cross multiply
    1,126,120.32x = 1,687,547.52 × 620,784
  4. Step 4: Simplify right side
    1,126,120.32x = 1,047,602,499,655.68
  5. Step 5: Solve for x
    x = 1,047,602,499,655.68/1,126,120.32
  6. Step 6: Final answer
    x = 930,275.82

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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.