Home / 688,551.12-1,033,225.74-289,157.40

Finding the Fourth Proportional to 688,551.12, 1,033,225.74 and 289,157.40

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Solution

The fourth proportional to 688,551.12, 1,033,225.74 and 289,157.40 is: 433,903.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,551.12 : 1,033,225.74 = 289,157.40 : x
  2. Step 2: Convert to fraction form
    688,551.12/1,033,225.74 = 289,157.40/x
  3. Step 3: Cross multiply
    688,551.12x = 1,033,225.74 × 289,157.40
  4. Step 4: Simplify right side
    688,551.12x = 298,764,868,591.48
  5. Step 5: Solve for x
    x = 298,764,868,591.48/688,551.12
  6. Step 6: Final answer
    x = 433,903.69

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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.