Home / 687,036.20-1,030,625.10-237,756.40

Finding the Fourth Proportional to 687,036.20, 1,030,625.10 and 237,756.40

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Solution

The fourth proportional to 687,036.20, 1,030,625.10 and 237,756.40 is: 356,659.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,036.20 : 1,030,625.10 = 237,756.40 : x
  2. Step 2: Convert to fraction form
    687,036.20/1,030,625.10 = 237,756.40/x
  3. Step 3: Cross multiply
    687,036.20x = 1,030,625.10 × 237,756.40
  4. Step 4: Simplify right side
    687,036.20x = 245,037,710,949.08
  5. Step 5: Solve for x
    x = 245,037,710,949.08/687,036.20
  6. Step 6: Final answer
    x = 356,659.10

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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.