Home / 791,406.73-1,091,656.07-646,423.21

Finding the Fourth Proportional to 791,406.73, 1,091,656.07 and 646,423.21

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Solution

The fourth proportional to 791,406.73, 1,091,656.07 and 646,423.21 is: 891,667.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,406.73 : 1,091,656.07 = 646,423.21 : x
  2. Step 2: Convert to fraction form
    791,406.73/1,091,656.07 = 646,423.21/x
  3. Step 3: Cross multiply
    791,406.73x = 1,091,656.07 × 646,423.21
  4. Step 4: Simplify right side
    791,406.73x = 705,671,817,753.27
  5. Step 5: Solve for x
    x = 705,671,817,753.27/791,406.73
  6. Step 6: Final answer
    x = 891,667.70

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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.