Home / 1,178,968.32-1,626,975.99-642,424.32

Finding the Fourth Proportional to 1,178,968.32, 1,626,975.99 and 642,424.32

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Solution

The fourth proportional to 1,178,968.32, 1,626,975.99 and 642,424.32 is: 886,545.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,968.32 : 1,626,975.99 = 642,424.32 : x
  2. Step 2: Convert to fraction form
    1,178,968.32/1,626,975.99 = 642,424.32/x
  3. Step 3: Cross multiply
    1,178,968.32x = 1,626,975.99 × 642,424.32
  4. Step 4: Simplify right side
    1,178,968.32x = 1,045,208,944,032.08
  5. Step 5: Solve for x
    x = 1,045,208,944,032.08/1,178,968.32
  6. Step 6: Final answer
    x = 886,545.40

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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.