Home / 855,000.87-1,283,495.27-500,269.47

Finding the Fourth Proportional to 855,000.87, 1,283,495.27 and 500,269.47

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Solution

The fourth proportional to 855,000.87, 1,283,495.27 and 500,269.47 is: 750,985.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,000.87 : 1,283,495.27 = 500,269.47 : x
  2. Step 2: Convert to fraction form
    855,000.87/1,283,495.27 = 500,269.47/x
  3. Step 3: Cross multiply
    855,000.87x = 1,283,495.27 × 500,269.47
  4. Step 4: Simplify right side
    855,000.87x = 642,093,495,969.06
  5. Step 5: Solve for x
    x = 642,093,495,969.06/855,000.87
  6. Step 6: Final answer
    x = 750,985.78

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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.