Home / 874,979.96-1,207,509.52-487,795.30

Finding the Fourth Proportional to 874,979.96, 1,207,509.52 and 487,795.30

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Solution

The fourth proportional to 874,979.96, 1,207,509.52 and 487,795.30 is: 673,178.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,979.96 : 1,207,509.52 = 487,795.30 : x
  2. Step 2: Convert to fraction form
    874,979.96/1,207,509.52 = 487,795.30/x
  3. Step 3: Cross multiply
    874,979.96x = 1,207,509.52 × 487,795.30
  4. Step 4: Simplify right side
    874,979.96x = 589,017,468,561.26
  5. Step 5: Solve for x
    x = 589,017,468,561.26/874,979.96
  6. Step 6: Final answer
    x = 673,178.24

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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.