Home / 780,147.90-1,169,347.05-400,922.10

Finding the Fourth Proportional to 780,147.90, 1,169,347.05 and 400,922.10

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Solution

The fourth proportional to 780,147.90, 1,169,347.05 and 400,922.10 is: 600,933.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,147.90 : 1,169,347.05 = 400,922.10 : x
  2. Step 2: Convert to fraction form
    780,147.90/1,169,347.05 = 400,922.10/x
  3. Step 3: Cross multiply
    780,147.90x = 1,169,347.05 × 400,922.10
  4. Step 4: Simplify right side
    780,147.90x = 468,817,074,914.81
  5. Step 5: Solve for x
    x = 468,817,074,914.81/780,147.90
  6. Step 6: Final answer
    x = 600,933.59

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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.