Home / 730,421.33-1,007,986.50-408,145.01

Finding the Fourth Proportional to 730,421.33, 1,007,986.50 and 408,145.01

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Solution

The fourth proportional to 730,421.33, 1,007,986.50 and 408,145.01 is: 563,242.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,421.33 : 1,007,986.50 = 408,145.01 : x
  2. Step 2: Convert to fraction form
    730,421.33/1,007,986.50 = 408,145.01/x
  3. Step 3: Cross multiply
    730,421.33x = 1,007,986.50 × 408,145.01
  4. Step 4: Simplify right side
    730,421.33x = 411,404,661,900.26
  5. Step 5: Solve for x
    x = 411,404,661,900.26/730,421.33
  6. Step 6: Final answer
    x = 563,242.95

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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.