Home / 1,292,253.36-1,938,379.58-345,599.50

Finding the Fourth Proportional to 1,292,253.36, 1,938,379.58 and 345,599.50

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Solution

The fourth proportional to 1,292,253.36, 1,938,379.58 and 345,599.50 is: 518,399.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,253.36 : 1,938,379.58 = 345,599.50 : x
  2. Step 2: Convert to fraction form
    1,292,253.36/1,938,379.58 = 345,599.50/x
  3. Step 3: Cross multiply
    1,292,253.36x = 1,938,379.58 × 345,599.50
  4. Step 4: Simplify right side
    1,292,253.36x = 669,903,013,658.21
  5. Step 5: Solve for x
    x = 669,903,013,658.21/1,292,253.36
  6. Step 6: Final answer
    x = 518,399.13

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Double scale
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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.