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Finding the Fourth Proportional to 707,564.80, 974,778.72 and 492,334.72

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Solution

The fourth proportional to 707,564.80, 974,778.72 and 492,334.72 is: 678,266.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,564.80 : 974,778.72 = 492,334.72 : x
  2. Step 2: Convert to fraction form
    707,564.80/974,778.72 = 492,334.72/x
  3. Step 3: Cross multiply
    707,564.80x = 974,778.72 × 492,334.72
  4. Step 4: Simplify right side
    707,564.80x = 479,917,408,173.16
  5. Step 5: Solve for x
    x = 479,917,408,173.16/707,564.80
  6. Step 6: Final answer
    x = 678,266.37

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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.