Home / 936,908.10-1,292,931.72-507,188.12

Finding the Fourth Proportional to 936,908.10, 1,292,931.72 and 507,188.12

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Solution

The fourth proportional to 936,908.10, 1,292,931.72 and 507,188.12 is: 699,918.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,908.10 : 1,292,931.72 = 507,188.12 : x
  2. Step 2: Convert to fraction form
    936,908.10/1,292,931.72 = 507,188.12/x
  3. Step 3: Cross multiply
    936,908.10x = 1,292,931.72 × 507,188.12
  4. Step 4: Simplify right side
    936,908.10x = 655,759,601,890.51
  5. Step 5: Solve for x
    x = 655,759,601,890.51/936,908.10
  6. Step 6: Final answer
    x = 699,918.81

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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.