Home / 860,288.48-1,187,225.52-478,331.36

Finding the Fourth Proportional to 860,288.48, 1,187,225.52 and 478,331.36

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Solution

The fourth proportional to 860,288.48, 1,187,225.52 and 478,331.36 is: 660,112.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,288.48 : 1,187,225.52 = 478,331.36 : x
  2. Step 2: Convert to fraction form
    860,288.48/1,187,225.52 = 478,331.36/x
  3. Step 3: Cross multiply
    860,288.48x = 1,187,225.52 × 478,331.36
  4. Step 4: Simplify right side
    860,288.48x = 567,887,197,608.31
  5. Step 5: Solve for x
    x = 567,887,197,608.31/860,288.48
  6. Step 6: Final answer
    x = 660,112.52

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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.