Home / 868,124.10-1,300,436.55-493,709.70

Finding the Fourth Proportional to 868,124.10, 1,300,436.55 and 493,709.70

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Solution

The fourth proportional to 868,124.10, 1,300,436.55 and 493,709.70 is: 739,569.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,124.10 : 1,300,436.55 = 493,709.70 : x
  2. Step 2: Convert to fraction form
    868,124.10/1,300,436.55 = 493,709.70/x
  3. Step 3: Cross multiply
    868,124.10x = 1,300,436.55 × 493,709.70
  4. Step 4: Simplify right side
    868,124.10x = 642,038,138,969.54
  5. Step 5: Solve for x
    x = 642,038,138,969.54/868,124.10
  6. Step 6: Final answer
    x = 739,569.54

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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.