Home / 915,395.70-1,263,320.90-507,625.44

Finding the Fourth Proportional to 915,395.70, 1,263,320.90 and 507,625.44

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Solution

The fourth proportional to 915,395.70, 1,263,320.90 and 507,625.44 is: 700,564.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,395.70 : 1,263,320.90 = 507,625.44 : x
  2. Step 2: Convert to fraction form
    915,395.70/1,263,320.90 = 507,625.44/x
  3. Step 3: Cross multiply
    915,395.70x = 1,263,320.90 × 507,625.44
  4. Step 4: Simplify right side
    915,395.70x = 641,293,818,868.96
  5. Step 5: Solve for x
    x = 641,293,818,868.96/915,395.70
  6. Step 6: Final answer
    x = 700,564.60

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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.