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Finding the Fourth Proportional to 586,360.84, 809,179.52 and 318,088.84

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Solution

The fourth proportional to 586,360.84, 809,179.52 and 318,088.84 is: 438,963.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,360.84 : 809,179.52 = 318,088.84 : x
  2. Step 2: Convert to fraction form
    586,360.84/809,179.52 = 318,088.84/x
  3. Step 3: Cross multiply
    586,360.84x = 809,179.52 × 318,088.84
  4. Step 4: Simplify right side
    586,360.84x = 257,390,974,868.56
  5. Step 5: Solve for x
    x = 257,390,974,868.56/586,360.84
  6. Step 6: Final answer
    x = 438,963.45

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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.