Home / 912,712.70-1,369,846.65-408,050.30

Finding the Fourth Proportional to 912,712.70, 1,369,846.65 and 408,050.30

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Solution

The fourth proportional to 912,712.70, 1,369,846.65 and 408,050.30 is: 612,423.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,712.70 : 1,369,846.65 = 408,050.30 : x
  2. Step 2: Convert to fraction form
    912,712.70/1,369,846.65 = 408,050.30/x
  3. Step 3: Cross multiply
    912,712.70x = 1,369,846.65 × 408,050.30
  4. Step 4: Simplify right side
    912,712.70x = 558,966,336,486.50
  5. Step 5: Solve for x
    x = 558,966,336,486.50/912,712.70
  6. Step 6: Final answer
    x = 612,423.09

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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.