Home / 728,856.52-1,005,823.62-406,587.49

Finding the Fourth Proportional to 728,856.52, 1,005,823.62 and 406,587.49

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Solution

The fourth proportional to 728,856.52, 1,005,823.62 and 406,587.49 is: 561,091.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,856.52 : 1,005,823.62 = 406,587.49 : x
  2. Step 2: Convert to fraction form
    728,856.52/1,005,823.62 = 406,587.49/x
  3. Step 3: Cross multiply
    728,856.52x = 1,005,823.62 × 406,587.49
  4. Step 4: Simplify right side
    728,856.52x = 408,955,301,038.51
  5. Step 5: Solve for x
    x = 408,955,301,038.51/728,856.52
  6. Step 6: Final answer
    x = 561,091.64

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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.