Home / 1,178,550.40-1,626,399.04-642,006.40

Finding the Fourth Proportional to 1,178,550.40, 1,626,399.04 and 642,006.40

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Solution

The fourth proportional to 1,178,550.40, 1,626,399.04 and 642,006.40 is: 885,968.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,550.40 : 1,626,399.04 = 642,006.40 : x
  2. Step 2: Convert to fraction form
    1,178,550.40/1,626,399.04 = 642,006.40/x
  3. Step 3: Cross multiply
    1,178,550.40x = 1,626,399.04 × 642,006.40
  4. Step 4: Simplify right side
    1,178,550.40x = 1,044,158,592,633.86
  5. Step 5: Solve for x
    x = 1,044,158,592,633.86/1,178,550.40
  6. Step 6: Final answer
    x = 885,968.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.