Home / 606,743.08-909,376.80-429,301.24

Finding the Fourth Proportional to 606,743.08, 909,376.80 and 429,301.24

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Solution

The fourth proportional to 606,743.08, 909,376.80 and 429,301.24 is: 643,429.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,743.08 : 909,376.80 = 429,301.24 : x
  2. Step 2: Convert to fraction form
    606,743.08/909,376.80 = 429,301.24/x
  3. Step 3: Cross multiply
    606,743.08x = 909,376.80 × 429,301.24
  4. Step 4: Simplify right side
    606,743.08x = 390,396,587,867.23
  5. Step 5: Solve for x
    x = 390,396,587,867.23/606,743.08
  6. Step 6: Final answer
    x = 643,429.82

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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.