Home / 813,624.32-1,123,328.58-523,365.68

Finding the Fourth Proportional to 813,624.32, 1,123,328.58 and 523,365.68

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Solution

The fourth proportional to 813,624.32, 1,123,328.58 and 523,365.68 is: 722,583.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,624.32 : 1,123,328.58 = 523,365.68 : x
  2. Step 2: Convert to fraction form
    813,624.32/1,123,328.58 = 523,365.68/x
  3. Step 3: Cross multiply
    813,624.32x = 1,123,328.58 × 523,365.68
  4. Step 4: Simplify right side
    813,624.32x = 587,911,626,135.13
  5. Step 5: Solve for x
    x = 587,911,626,135.13/813,624.32
  6. Step 6: Final answer
    x = 722,583.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.