Home / 830,036.06-1,143,037.82-721,090.65

Finding the Fourth Proportional to 830,036.06, 1,143,037.82 and 721,090.65

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Solution

The fourth proportional to 830,036.06, 1,143,037.82 and 721,090.65 is: 993,009.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,036.06 : 1,143,037.82 = 721,090.65 : x
  2. Step 2: Convert to fraction form
    830,036.06/1,143,037.82 = 721,090.65/x
  3. Step 3: Cross multiply
    830,036.06x = 1,143,037.82 × 721,090.65
  4. Step 4: Simplify right side
    830,036.06x = 824,233,890,687.50
  5. Step 5: Solve for x
    x = 824,233,890,687.50/830,036.06
  6. Step 6: Final answer
    x = 993,009.74

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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.