Home / 720,256.24-993,901.98-397,962.64

Finding the Fourth Proportional to 720,256.24, 993,901.98 and 397,962.64

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Solution

The fourth proportional to 720,256.24, 993,901.98 and 397,962.64 is: 549,159.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,256.24 : 993,901.98 = 397,962.64 : x
  2. Step 2: Convert to fraction form
    720,256.24/993,901.98 = 397,962.64/x
  3. Step 3: Cross multiply
    720,256.24x = 993,901.98 × 397,962.64
  4. Step 4: Simplify right side
    720,256.24x = 395,535,855,862.03
  5. Step 5: Solve for x
    x = 395,535,855,862.03/720,256.24
  6. Step 6: Final answer
    x = 549,159.92

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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.