Home / 830,945.04-1,246,022.28-431,185.20

Finding the Fourth Proportional to 830,945.04, 1,246,022.28 and 431,185.20

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Solution

The fourth proportional to 830,945.04, 1,246,022.28 and 431,185.20 is: 646,572.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,945.04 : 1,246,022.28 = 431,185.20 : x
  2. Step 2: Convert to fraction form
    830,945.04/1,246,022.28 = 431,185.20/x
  3. Step 3: Cross multiply
    830,945.04x = 1,246,022.28 × 431,185.20
  4. Step 4: Simplify right side
    830,945.04x = 537,266,366,006.26
  5. Step 5: Solve for x
    x = 537,266,366,006.26/830,945.04
  6. Step 6: Final answer
    x = 646,572.69

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Double scale
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1.5x scale

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.