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Finding the Fourth Proportional to 630,567.36, 946,248.48 and 420,356.16

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Solution

The fourth proportional to 630,567.36, 946,248.48 and 420,356.16 is: 630,799.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,567.36 : 946,248.48 = 420,356.16 : x
  2. Step 2: Convert to fraction form
    630,567.36/946,248.48 = 420,356.16/x
  3. Step 3: Cross multiply
    630,567.36x = 946,248.48 × 420,356.16
  4. Step 4: Simplify right side
    630,567.36x = 397,761,377,458.64
  5. Step 5: Solve for x
    x = 397,761,377,458.64/630,567.36
  6. Step 6: Final answer
    x = 630,799.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.