Home / 740,668.32-1,022,123.61-401,136.57

Finding the Fourth Proportional to 740,668.32, 1,022,123.61 and 401,136.57

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Solution

The fourth proportional to 740,668.32, 1,022,123.61 and 401,136.57 is: 553,569.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,668.32 : 1,022,123.61 = 401,136.57 : x
  2. Step 2: Convert to fraction form
    740,668.32/1,022,123.61 = 401,136.57/x
  3. Step 3: Cross multiply
    740,668.32x = 1,022,123.61 × 401,136.57
  4. Step 4: Simplify right side
    740,668.32x = 410,011,159,031.42
  5. Step 5: Solve for x
    x = 410,011,159,031.42/740,668.32
  6. Step 6: Final answer
    x = 553,569.19

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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.