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Finding the Fourth Proportional to 708,091.52, 977,153.90 and 385,803.94

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Solution

The fourth proportional to 708,091.52, 977,153.90 and 385,803.94 is: 532,402.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,091.52 : 977,153.90 = 385,803.94 : x
  2. Step 2: Convert to fraction form
    708,091.52/977,153.90 = 385,803.94/x
  3. Step 3: Cross multiply
    708,091.52x = 977,153.90 × 385,803.94
  4. Step 4: Simplify right side
    708,091.52x = 376,989,824,606.37
  5. Step 5: Solve for x
    x = 376,989,824,606.37/708,091.52
  6. Step 6: Final answer
    x = 532,402.68

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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.