Home / 885,431.70-1,221,890.07-503,458.50

Finding the Fourth Proportional to 885,431.70, 1,221,890.07 and 503,458.50

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Solution

The fourth proportional to 885,431.70, 1,221,890.07 and 503,458.50 is: 694,769.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,431.70 : 1,221,890.07 = 503,458.50 : x
  2. Step 2: Convert to fraction form
    885,431.70/1,221,890.07 = 503,458.50/x
  3. Step 3: Cross multiply
    885,431.70x = 1,221,890.07 × 503,458.50
  4. Step 4: Simplify right side
    885,431.70x = 615,170,941,807.10
  5. Step 5: Solve for x
    x = 615,170,941,807.10/885,431.70
  6. Step 6: Final answer
    x = 694,769.50

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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.