Home / 921,478.85-1,382,124.86-247,472.59

Finding the Fourth Proportional to 921,478.85, 1,382,124.86 and 247,472.59

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Solution

The fourth proportional to 921,478.85, 1,382,124.86 and 247,472.59 is: 371,183.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,478.85 : 1,382,124.86 = 247,472.59 : x
  2. Step 2: Convert to fraction form
    921,478.85/1,382,124.86 = 247,472.59/x
  3. Step 3: Cross multiply
    921,478.85x = 1,382,124.86 × 247,472.59
  4. Step 4: Simplify right side
    921,478.85x = 342,038,018,807.59
  5. Step 5: Solve for x
    x = 342,038,018,807.59/921,478.85
  6. Step 6: Final answer
    x = 371,183.80

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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.