Home / 688,740.60-1,033,110.90-498,799.65

Finding the Fourth Proportional to 688,740.60, 1,033,110.90 and 498,799.65

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Solution

The fourth proportional to 688,740.60, 1,033,110.90 and 498,799.65 is: 748,199.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,740.60 : 1,033,110.90 = 498,799.65 : x
  2. Step 2: Convert to fraction form
    688,740.60/1,033,110.90 = 498,799.65/x
  3. Step 3: Cross multiply
    688,740.60x = 1,033,110.90 × 498,799.65
  4. Step 4: Simplify right side
    688,740.60x = 515,315,355,331.19
  5. Step 5: Solve for x
    x = 515,315,355,331.19/688,740.60
  6. Step 6: Final answer
    x = 748,199.48

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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.