Home / 658,085.49-986,985.63-384,348.74

Finding the Fourth Proportional to 658,085.49, 986,985.63 and 384,348.74

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Solution

The fourth proportional to 658,085.49, 986,985.63 and 384,348.74 is: 576,439.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,085.49 : 986,985.63 = 384,348.74 : x
  2. Step 2: Convert to fraction form
    658,085.49/986,985.63 = 384,348.74/x
  3. Step 3: Cross multiply
    658,085.49x = 986,985.63 × 384,348.74
  4. Step 4: Simplify right side
    658,085.49x = 379,346,678,353.68
  5. Step 5: Solve for x
    x = 379,346,678,353.68/658,085.49
  6. Step 6: Final answer
    x = 576,439.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.