Home / 860,372.48-1,187,341.44-478,415.36

Finding the Fourth Proportional to 860,372.48, 1,187,341.44 and 478,415.36

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Solution

The fourth proportional to 860,372.48, 1,187,341.44 and 478,415.36 is: 660,228.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,372.48 : 1,187,341.44 = 478,415.36 : x
  2. Step 2: Convert to fraction form
    860,372.48/1,187,341.44 = 478,415.36/x
  3. Step 3: Cross multiply
    860,372.48x = 1,187,341.44 × 478,415.36
  4. Step 4: Simplify right side
    860,372.48x = 568,042,382,460.52
  5. Step 5: Solve for x
    x = 568,042,382,460.52/860,372.48
  6. Step 6: Final answer
    x = 660,228.44

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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.