Home / 1,280,628.04-1,767,267.30-707,668.20

Finding the Fourth Proportional to 1,280,628.04, 1,767,267.30 and 707,668.20

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Solution

The fourth proportional to 1,280,628.04, 1,767,267.30 and 707,668.20 is: 976,582.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,628.04 : 1,767,267.30 = 707,668.20 : x
  2. Step 2: Convert to fraction form
    1,280,628.04/1,767,267.30 = 707,668.20/x
  3. Step 3: Cross multiply
    1,280,628.04x = 1,767,267.30 × 707,668.20
  4. Step 4: Simplify right side
    1,280,628.04x = 1,250,638,869,109.86
  5. Step 5: Solve for x
    x = 1,250,638,869,109.86/1,280,628.04
  6. Step 6: Final answer
    x = 976,582.45

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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.