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Finding the Fourth Proportional to 614,370.28, 847,840.38 and 342,430.60

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Solution

The fourth proportional to 614,370.28, 847,840.38 and 342,430.60 is: 472,559.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,370.28 : 847,840.38 = 342,430.60 : x
  2. Step 2: Convert to fraction form
    614,370.28/847,840.38 = 342,430.60/x
  3. Step 3: Cross multiply
    614,370.28x = 847,840.38 × 342,430.60
  4. Step 4: Simplify right side
    614,370.28x = 290,326,490,027.63
  5. Step 5: Solve for x
    x = 290,326,490,027.63/614,370.28
  6. Step 6: Final answer
    x = 472,559.46

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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.