Home / 687,733.61-1,030,146.06-434,883.61

Finding the Fourth Proportional to 687,733.61, 1,030,146.06 and 434,883.61

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Solution

The fourth proportional to 687,733.61, 1,030,146.06 and 434,883.61 is: 651,405.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,733.61 : 1,030,146.06 = 434,883.61 : x
  2. Step 2: Convert to fraction form
    687,733.61/1,030,146.06 = 434,883.61/x
  3. Step 3: Cross multiply
    687,733.61x = 1,030,146.06 × 434,883.61
  4. Step 4: Simplify right side
    687,733.61x = 447,993,637,400.08
  5. Step 5: Solve for x
    x = 447,993,637,400.08/687,733.61
  6. Step 6: Final answer
    x = 651,405.76

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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.