Home / 771,635.16-1,065,225.74-513,940.95

Finding the Fourth Proportional to 771,635.16, 1,065,225.74 and 513,940.95

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Solution

The fourth proportional to 771,635.16, 1,065,225.74 and 513,940.95 is: 709,484.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,635.16 : 1,065,225.74 = 513,940.95 : x
  2. Step 2: Convert to fraction form
    771,635.16/1,065,225.74 = 513,940.95/x
  3. Step 3: Cross multiply
    771,635.16x = 1,065,225.74 × 513,940.95
  4. Step 4: Simplify right side
    771,635.16x = 547,463,126,210.35
  5. Step 5: Solve for x
    x = 547,463,126,210.35/771,635.16
  6. Step 6: Final answer
    x = 709,484.42

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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.