Home / 690,259.80-1,035,389.70-216,944.40

Finding the Fourth Proportional to 690,259.80, 1,035,389.70 and 216,944.40

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Solution

The fourth proportional to 690,259.80, 1,035,389.70 and 216,944.40 is: 325,416.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,259.80 : 1,035,389.70 = 216,944.40 : x
  2. Step 2: Convert to fraction form
    690,259.80/1,035,389.70 = 216,944.40/x
  3. Step 3: Cross multiply
    690,259.80x = 1,035,389.70 × 216,944.40
  4. Step 4: Simplify right side
    690,259.80x = 224,621,997,232.68
  5. Step 5: Solve for x
    x = 224,621,997,232.68/690,259.80
  6. Step 6: Final answer
    x = 325,416.60

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Double scale
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Similar ratio
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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.