Home / 912,124.92-1,368,210.90-432,240.12

Finding the Fourth Proportional to 912,124.92, 1,368,210.90 and 432,240.12

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Solution

The fourth proportional to 912,124.92, 1,368,210.90 and 432,240.12 is: 648,371.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,124.92 : 1,368,210.90 = 432,240.12 : x
  2. Step 2: Convert to fraction form
    912,124.92/1,368,210.90 = 432,240.12/x
  3. Step 3: Cross multiply
    912,124.92x = 1,368,210.90 × 432,240.12
  4. Step 4: Simplify right side
    912,124.92x = 591,395,643,601.31
  5. Step 5: Solve for x
    x = 591,395,643,601.31/912,124.92
  6. Step 6: Final answer
    x = 648,371.33

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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.