Home / 807,875.20-1,211,812.80-434,627.20

Finding the Fourth Proportional to 807,875.20, 1,211,812.80 and 434,627.20

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Solution

The fourth proportional to 807,875.20, 1,211,812.80 and 434,627.20 is: 651,940.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,875.20 : 1,211,812.80 = 434,627.20 : x
  2. Step 2: Convert to fraction form
    807,875.20/1,211,812.80 = 434,627.20/x
  3. Step 3: Cross multiply
    807,875.20x = 1,211,812.80 × 434,627.20
  4. Step 4: Simplify right side
    807,875.20x = 526,686,804,188.16
  5. Step 5: Solve for x
    x = 526,686,804,188.16/807,875.20
  6. Step 6: Final answer
    x = 651,940.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.