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Finding the Fourth Proportional to 630,959.80, 946,590.36 and 210,239.32

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Solution

The fourth proportional to 630,959.80, 946,590.36 and 210,239.32 is: 315,409.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,959.80 : 946,590.36 = 210,239.32 : x
  2. Step 2: Convert to fraction form
    630,959.80/946,590.36 = 210,239.32/x
  3. Step 3: Cross multiply
    630,959.80x = 946,590.36 × 210,239.32
  4. Step 4: Simplify right side
    630,959.80x = 199,010,513,604.96
  5. Step 5: Solve for x
    x = 199,010,513,604.96/630,959.80
  6. Step 6: Final answer
    x = 315,409.18

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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.