Home / 720,021.32-1,077,688.24-530,407.20

Finding the Fourth Proportional to 720,021.32, 1,077,688.24 and 530,407.20

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Solution

The fourth proportional to 720,021.32, 1,077,688.24 and 530,407.20 is: 793,884.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,021.32 : 1,077,688.24 = 530,407.20 : x
  2. Step 2: Convert to fraction form
    720,021.32/1,077,688.24 = 530,407.20/x
  3. Step 3: Cross multiply
    720,021.32x = 1,077,688.24 × 530,407.20
  4. Step 4: Simplify right side
    720,021.32x = 571,613,601,851.33
  5. Step 5: Solve for x
    x = 571,613,601,851.33/720,021.32
  6. Step 6: Final answer
    x = 793,884.27

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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.