Home / 774,858.28-1,069,331.94-435,319.72

Finding the Fourth Proportional to 774,858.28, 1,069,331.94 and 435,319.72

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Solution

The fourth proportional to 774,858.28, 1,069,331.94 and 435,319.72 is: 600,756.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,858.28 : 1,069,331.94 = 435,319.72 : x
  2. Step 2: Convert to fraction form
    774,858.28/1,069,331.94 = 435,319.72/x
  3. Step 3: Cross multiply
    774,858.28x = 1,069,331.94 × 435,319.72
  4. Step 4: Simplify right side
    774,858.28x = 465,501,280,707.86
  5. Step 5: Solve for x
    x = 465,501,280,707.86/774,858.28
  6. Step 6: Final answer
    x = 600,756.67

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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.