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Finding the Fourth Proportional to 471,430.80, 650,806.92 and 369,280.08

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Solution

The fourth proportional to 471,430.80, 650,806.92 and 369,280.08 is: 509,788.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,430.80 : 650,806.92 = 369,280.08 : x
  2. Step 2: Convert to fraction form
    471,430.80/650,806.92 = 369,280.08/x
  3. Step 3: Cross multiply
    471,430.80x = 650,806.92 × 369,280.08
  4. Step 4: Simplify right side
    471,430.80x = 240,330,031,482.15
  5. Step 5: Solve for x
    x = 240,330,031,482.15/471,430.80
  6. Step 6: Final answer
    x = 509,788.57

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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.