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Finding the Fourth Proportional to 528,373.36, 729,155.12 and 302,023.72

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Solution

The fourth proportional to 528,373.36, 729,155.12 and 302,023.72 is: 416,792.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,373.36 : 729,155.12 = 302,023.72 : x
  2. Step 2: Convert to fraction form
    528,373.36/729,155.12 = 302,023.72/x
  3. Step 3: Cross multiply
    528,373.36x = 729,155.12 × 302,023.72
  4. Step 4: Simplify right side
    528,373.36x = 220,222,141,799.45
  5. Step 5: Solve for x
    x = 220,222,141,799.45/528,373.36
  6. Step 6: Final answer
    x = 416,792.67

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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.