Home / 812,075.22-1,120,406.18-472,477.86

Finding the Fourth Proportional to 812,075.22, 1,120,406.18 and 472,477.86

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Solution

The fourth proportional to 812,075.22, 1,120,406.18 and 472,477.86 is: 651,869.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,075.22 : 1,120,406.18 = 472,477.86 : x
  2. Step 2: Convert to fraction form
    812,075.22/1,120,406.18 = 472,477.86/x
  3. Step 3: Cross multiply
    812,075.22x = 1,120,406.18 × 472,477.86
  4. Step 4: Simplify right side
    812,075.22x = 529,367,111,894.79
  5. Step 5: Solve for x
    x = 529,367,111,894.79/812,075.22
  6. Step 6: Final answer
    x = 651,869.55

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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.