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Finding the Fourth Proportional to 450,431.68, 621,590.34 and 246,480.40

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Solution

The fourth proportional to 450,431.68, 621,590.34 and 246,480.40 is: 340,140.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,431.68 : 621,590.34 = 246,480.40 : x
  2. Step 2: Convert to fraction form
    450,431.68/621,590.34 = 246,480.40/x
  3. Step 3: Cross multiply
    450,431.68x = 621,590.34 × 246,480.40
  4. Step 4: Simplify right side
    450,431.68x = 153,209,835,639.34
  5. Step 5: Solve for x
    x = 153,209,835,639.34/450,431.68
  6. Step 6: Final answer
    x = 340,140.01

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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.