Home / 910,456.40-1,256,429.88-502,558.36

Finding the Fourth Proportional to 910,456.40, 1,256,429.88 and 502,558.36

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Solution

The fourth proportional to 910,456.40, 1,256,429.88 and 502,558.36 is: 693,530.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,456.40 : 1,256,429.88 = 502,558.36 : x
  2. Step 2: Convert to fraction form
    910,456.40/1,256,429.88 = 502,558.36/x
  3. Step 3: Cross multiply
    910,456.40x = 1,256,429.88 × 502,558.36
  4. Step 4: Simplify right side
    910,456.40x = 631,429,339,947.80
  5. Step 5: Solve for x
    x = 631,429,339,947.80/910,456.40
  6. Step 6: Final answer
    x = 693,530.56

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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.