Home / 939,532.81-1,409,167.99-400,005.40

Finding the Fourth Proportional to 939,532.81, 1,409,167.99 and 400,005.40

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Solution

The fourth proportional to 939,532.81, 1,409,167.99 and 400,005.40 is: 599,952.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,532.81 : 1,409,167.99 = 400,005.40 : x
  2. Step 2: Convert to fraction form
    939,532.81/1,409,167.99 = 400,005.40/x
  3. Step 3: Cross multiply
    939,532.81x = 1,409,167.99 × 400,005.40
  4. Step 4: Simplify right side
    939,532.81x = 563,674,805,507.15
  5. Step 5: Solve for x
    x = 563,674,805,507.15/939,532.81
  6. Step 6: Final answer
    x = 599,952.23

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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.