Home / 1,297,710.60-1,946,711.70-399,145.20

Finding the Fourth Proportional to 1,297,710.60, 1,946,711.70 and 399,145.20

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Solution

The fourth proportional to 1,297,710.60, 1,946,711.70 and 399,145.20 is: 598,762.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,710.60 : 1,946,711.70 = 399,145.20 : x
  2. Step 2: Convert to fraction form
    1,297,710.60/1,946,711.70 = 399,145.20/x
  3. Step 3: Cross multiply
    1,297,710.60x = 1,946,711.70 × 399,145.20
  4. Step 4: Simplify right side
    1,297,710.60x = 777,020,630,838.84
  5. Step 5: Solve for x
    x = 777,020,630,838.84/1,297,710.60
  6. Step 6: Final answer
    x = 598,762.64

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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.