Home / 1,114,128.88-1,537,510.21-630,683.42

Finding the Fourth Proportional to 1,114,128.88, 1,537,510.21 and 630,683.42

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Solution

The fourth proportional to 1,114,128.88, 1,537,510.21 and 630,683.42 is: 870,350.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,114,128.88 : 1,537,510.21 = 630,683.42 : x
  2. Step 2: Convert to fraction form
    1,114,128.88/1,537,510.21 = 630,683.42/x
  3. Step 3: Cross multiply
    1,114,128.88x = 1,537,510.21 × 630,683.42
  4. Step 4: Simplify right side
    1,114,128.88x = 969,682,188,263.46
  5. Step 5: Solve for x
    x = 969,682,188,263.46/1,114,128.88
  6. Step 6: Final answer
    x = 870,350.11

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Double scale
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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.