Home / 915,290.34-1,263,100.64-507,391.14

Finding the Fourth Proportional to 915,290.34, 1,263,100.64 and 507,391.14

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Solution

The fourth proportional to 915,290.34, 1,263,100.64 and 507,391.14 is: 700,199.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,290.34 : 1,263,100.64 = 507,391.14 : x
  2. Step 2: Convert to fraction form
    915,290.34/1,263,100.64 = 507,391.14/x
  3. Step 3: Cross multiply
    915,290.34x = 1,263,100.64 × 507,391.14
  4. Step 4: Simplify right side
    915,290.34x = 640,886,071,127.37
  5. Step 5: Solve for x
    x = 640,886,071,127.37/915,290.34
  6. Step 6: Final answer
    x = 700,199.76

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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.