Home / 868,173.60-1,300,510.80-493,759.20

Finding the Fourth Proportional to 868,173.60, 1,300,510.80 and 493,759.20

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Solution

The fourth proportional to 868,173.60, 1,300,510.80 and 493,759.20 is: 739,643.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,173.60 : 1,300,510.80 = 493,759.20 : x
  2. Step 2: Convert to fraction form
    868,173.60/1,300,510.80 = 493,759.20/x
  3. Step 3: Cross multiply
    868,173.60x = 1,300,510.80 × 493,759.20
  4. Step 4: Simplify right side
    868,173.60x = 642,139,172,199.36
  5. Step 5: Solve for x
    x = 642,139,172,199.36/868,173.60
  6. Step 6: Final answer
    x = 739,643.74

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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.