Home / 859,925.68-1,290,043.64-354,210.58

Finding the Fourth Proportional to 859,925.68, 1,290,043.64 and 354,210.58

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Solution

The fourth proportional to 859,925.68, 1,290,043.64 and 354,210.58 is: 531,379.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,925.68 : 1,290,043.64 = 354,210.58 : x
  2. Step 2: Convert to fraction form
    859,925.68/1,290,043.64 = 354,210.58/x
  3. Step 3: Cross multiply
    859,925.68x = 1,290,043.64 × 354,210.58
  4. Step 4: Simplify right side
    859,925.68x = 456,947,105,949.71
  5. Step 5: Solve for x
    x = 456,947,105,949.71/859,925.68
  6. Step 6: Final answer
    x = 531,379.77

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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.