Home / 720,288.24-992,812.32-510,806.04

Finding the Fourth Proportional to 720,288.24, 992,812.32 and 510,806.04

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Solution

The fourth proportional to 720,288.24, 992,812.32 and 510,806.04 is: 704,071.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,288.24 : 992,812.32 = 510,806.04 : x
  2. Step 2: Convert to fraction form
    720,288.24/992,812.32 = 510,806.04/x
  3. Step 3: Cross multiply
    720,288.24x = 992,812.32 × 510,806.04
  4. Step 4: Simplify right side
    720,288.24x = 507,134,529,642.41
  5. Step 5: Solve for x
    x = 507,134,529,642.41/720,288.24
  6. Step 6: Final answer
    x = 704,071.65

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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.