Home / 690,303.80-1,035,455.70-191,667.80

Finding the Fourth Proportional to 690,303.80, 1,035,455.70 and 191,667.80

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Solution

The fourth proportional to 690,303.80, 1,035,455.70 and 191,667.80 is: 287,501.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,303.80 : 1,035,455.70 = 191,667.80 : x
  2. Step 2: Convert to fraction form
    690,303.80/1,035,455.70 = 191,667.80/x
  3. Step 3: Cross multiply
    690,303.80x = 1,035,455.70 × 191,667.80
  4. Step 4: Simplify right side
    690,303.80x = 198,463,516,016.46
  5. Step 5: Solve for x
    x = 198,463,516,016.46/690,303.80
  6. Step 6: Final answer
    x = 287,501.70

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Similar ratio
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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.