Home / 833,315.40-1,250,031.78-412,478.28

Finding the Fourth Proportional to 833,315.40, 1,250,031.78 and 412,478.28

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Solution

The fourth proportional to 833,315.40, 1,250,031.78 and 412,478.28 is: 618,746.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    833,315.40 : 1,250,031.78 = 412,478.28 : x
  2. Step 2: Convert to fraction form
    833,315.40/1,250,031.78 = 412,478.28/x
  3. Step 3: Cross multiply
    833,315.40x = 1,250,031.78 × 412,478.28
  4. Step 4: Simplify right side
    833,315.40x = 515,610,958,559.74
  5. Step 5: Solve for x
    x = 515,610,958,559.74/833,315.40
  6. Step 6: Final answer
    x = 618,746.47

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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.