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Finding the Fourth Proportional to 610,300.84, 915,298.08 and 290,255.20

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Solution

The fourth proportional to 610,300.84, 915,298.08 and 290,255.20 is: 435,309.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,300.84 : 915,298.08 = 290,255.20 : x
  2. Step 2: Convert to fraction form
    610,300.84/915,298.08 = 290,255.20/x
  3. Step 3: Cross multiply
    610,300.84x = 915,298.08 × 290,255.20
  4. Step 4: Simplify right side
    610,300.84x = 265,670,027,270.02
  5. Step 5: Solve for x
    x = 265,670,027,270.02/610,300.84
  6. Step 6: Final answer
    x = 435,309.95

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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.