Home / 1,225,531.47-1,838,346.66-426,893.79

Finding the Fourth Proportional to 1,225,531.47, 1,838,346.66 and 426,893.79

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Solution

The fourth proportional to 1,225,531.47, 1,838,346.66 and 426,893.79 is: 640,357.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,531.47 : 1,838,346.66 = 426,893.79 : x
  2. Step 2: Convert to fraction form
    1,225,531.47/1,838,346.66 = 426,893.79/x
  3. Step 3: Cross multiply
    1,225,531.47x = 1,838,346.66 × 426,893.79
  4. Step 4: Simplify right side
    1,225,531.47x = 784,778,773,021.24
  5. Step 5: Solve for x
    x = 784,778,773,021.24/1,225,531.47
  6. Step 6: Final answer
    x = 640,357.91

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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.