Home / 686,073.60-1,030,276.80-508,780.80

Finding the Fourth Proportional to 686,073.60, 1,030,276.80 and 508,780.80

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Solution

The fourth proportional to 686,073.60, 1,030,276.80 and 508,780.80 is: 764,036.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,073.60 : 1,030,276.80 = 508,780.80 : x
  2. Step 2: Convert to fraction form
    686,073.60/1,030,276.80 = 508,780.80/x
  3. Step 3: Cross multiply
    686,073.60x = 1,030,276.80 × 508,780.80
  4. Step 4: Simplify right side
    686,073.60x = 524,185,054,525.44
  5. Step 5: Solve for x
    x = 524,185,054,525.44/686,073.60
  6. Step 6: Final answer
    x = 764,036.18

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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.