Home / 808,664.36-1,212,979.98-359,263.40

Finding the Fourth Proportional to 808,664.36, 1,212,979.98 and 359,263.40

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Solution

The fourth proportional to 808,664.36, 1,212,979.98 and 359,263.40 is: 538,887.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,664.36 : 1,212,979.98 = 359,263.40 : x
  2. Step 2: Convert to fraction form
    808,664.36/1,212,979.98 = 359,263.40/x
  3. Step 3: Cross multiply
    808,664.36x = 1,212,979.98 × 359,263.40
  4. Step 4: Simplify right side
    808,664.36x = 435,779,311,746.73
  5. Step 5: Solve for x
    x = 435,779,311,746.73/808,664.36
  6. Step 6: Final answer
    x = 538,887.74

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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.