Home / 1,127,284.02-1,690,434.51-426,376.50

Finding the Fourth Proportional to 1,127,284.02, 1,690,434.51 and 426,376.50

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Solution

The fourth proportional to 1,127,284.02, 1,690,434.51 and 426,376.50 is: 639,378.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,284.02 : 1,690,434.51 = 426,376.50 : x
  2. Step 2: Convert to fraction form
    1,127,284.02/1,690,434.51 = 426,376.50/x
  3. Step 3: Cross multiply
    1,127,284.02x = 1,690,434.51 × 426,376.50
  4. Step 4: Simplify right side
    1,127,284.02x = 720,761,549,853.02
  5. Step 5: Solve for x
    x = 720,761,549,853.02/1,127,284.02
  6. Step 6: Final answer
    x = 639,378.84

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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.