Home / 684,143.40-1,026,798.30-305,646.60

Finding the Fourth Proportional to 684,143.40, 1,026,798.30 and 305,646.60

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Solution

The fourth proportional to 684,143.40, 1,026,798.30 and 305,646.60 is: 458,730.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,143.40 : 1,026,798.30 = 305,646.60 : x
  2. Step 2: Convert to fraction form
    684,143.40/1,026,798.30 = 305,646.60/x
  3. Step 3: Cross multiply
    684,143.40x = 1,026,798.30 × 305,646.60
  4. Step 4: Simplify right side
    684,143.40x = 313,837,409,280.78
  5. Step 5: Solve for x
    x = 313,837,409,280.78/684,143.40
  6. Step 6: Final answer
    x = 458,730.45

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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.