Home / 761,621.34-1,051,037.45-422,111.46

Finding the Fourth Proportional to 761,621.34, 1,051,037.45 and 422,111.46

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Solution

The fourth proportional to 761,621.34, 1,051,037.45 and 422,111.46 is: 582,513.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,621.34 : 1,051,037.45 = 422,111.46 : x
  2. Step 2: Convert to fraction form
    761,621.34/1,051,037.45 = 422,111.46/x
  3. Step 3: Cross multiply
    761,621.34x = 1,051,037.45 × 422,111.46
  4. Step 4: Simplify right side
    761,621.34x = 443,654,958,322.31
  5. Step 5: Solve for x
    x = 443,654,958,322.31/761,621.34
  6. Step 6: Final answer
    x = 582,513.82

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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.