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Finding the Fourth Proportional to 708,259.70, 977,369.94 and 385,962.93

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Solution

The fourth proportional to 708,259.70, 977,369.94 and 385,962.93 is: 532,613.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,259.70 : 977,369.94 = 385,962.93 : x
  2. Step 2: Convert to fraction form
    708,259.70/977,369.94 = 385,962.93/x
  3. Step 3: Cross multiply
    708,259.70x = 977,369.94 × 385,962.93
  4. Step 4: Simplify right side
    708,259.70x = 377,228,560,849.48
  5. Step 5: Solve for x
    x = 377,228,560,849.48/708,259.70
  6. Step 6: Final answer
    x = 532,613.34

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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.