Home / 778,721.36-1,074,633.44-434,553.63

Finding the Fourth Proportional to 778,721.36, 1,074,633.44 and 434,553.63

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Solution

The fourth proportional to 778,721.36, 1,074,633.44 and 434,553.63 is: 599,682.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,721.36 : 1,074,633.44 = 434,553.63 : x
  2. Step 2: Convert to fraction form
    778,721.36/1,074,633.44 = 434,553.63/x
  3. Step 3: Cross multiply
    778,721.36x = 1,074,633.44 × 434,553.63
  4. Step 4: Simplify right side
    778,721.36x = 466,985,862,271.39
  5. Step 5: Solve for x
    x = 466,985,862,271.39/778,721.36
  6. Step 6: Final answer
    x = 599,682.87

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Double scale
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1.5x scale

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.