Home / 1,249,287.40-1,873,470.30-407,866.60

Finding the Fourth Proportional to 1,249,287.40, 1,873,470.30 and 407,866.60

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Solution

The fourth proportional to 1,249,287.40, 1,873,470.30 and 407,866.60 is: 611,649.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,287.40 : 1,873,470.30 = 407,866.60 : x
  2. Step 2: Convert to fraction form
    1,249,287.40/1,873,470.30 = 407,866.60/x
  3. Step 3: Cross multiply
    1,249,287.40x = 1,873,470.30 × 407,866.60
  4. Step 4: Simplify right side
    1,249,287.40x = 764,125,961,461.98
  5. Step 5: Solve for x
    x = 764,125,961,461.98/1,249,287.40
  6. Step 6: Final answer
    x = 611,649.46

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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.