Home / 756,426.40-1,133,257.20-615,421.60

Finding the Fourth Proportional to 756,426.40, 1,133,257.20 and 615,421.60

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Solution

The fourth proportional to 756,426.40, 1,133,257.20 and 615,421.60 is: 922,007.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,426.40 : 1,133,257.20 = 615,421.60 : x
  2. Step 2: Convert to fraction form
    756,426.40/1,133,257.20 = 615,421.60/x
  3. Step 3: Cross multiply
    756,426.40x = 1,133,257.20 × 615,421.60
  4. Step 4: Simplify right side
    756,426.40x = 697,430,959,235.52
  5. Step 5: Solve for x
    x = 697,430,959,235.52/756,426.40
  6. Step 6: Final answer
    x = 922,007.69

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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.