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Finding the Fourth Proportional to 557,475.60, 769,303.38 and 324,887.64

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Solution

The fourth proportional to 557,475.60, 769,303.38 and 324,887.64 is: 448,337.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,475.60 : 769,303.38 = 324,887.64 : x
  2. Step 2: Convert to fraction form
    557,475.60/769,303.38 = 324,887.64/x
  3. Step 3: Cross multiply
    557,475.60x = 769,303.38 × 324,887.64
  4. Step 4: Simplify right side
    557,475.60x = 249,937,159,572.22
  5. Step 5: Solve for x
    x = 249,937,159,572.22/557,475.60
  6. Step 6: Final answer
    x = 448,337.40

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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.