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Finding the Fourth Proportional to 709,501.88, 980,178.91 and 465,066.83

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Solution

The fourth proportional to 709,501.88, 980,178.91 and 465,066.83 is: 642,491.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,501.88 : 980,178.91 = 465,066.83 : x
  2. Step 2: Convert to fraction form
    709,501.88/980,178.91 = 465,066.83/x
  3. Step 3: Cross multiply
    709,501.88x = 980,178.91 × 465,066.83
  4. Step 4: Simplify right side
    709,501.88x = 455,848,699,794.34
  5. Step 5: Solve for x
    x = 455,848,699,794.34/709,501.88
  6. Step 6: Final answer
    x = 642,491.18

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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.