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Finding the Fourth Proportional to 607,311.60, 910,384.20 and 472,300.80

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Solution

The fourth proportional to 607,311.60, 910,384.20 and 472,300.80 is: 707,997.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,311.60 : 910,384.20 = 472,300.80 : x
  2. Step 2: Convert to fraction form
    607,311.60/910,384.20 = 472,300.80/x
  3. Step 3: Cross multiply
    607,311.60x = 910,384.20 × 472,300.80
  4. Step 4: Simplify right side
    607,311.60x = 429,975,185,967.36
  5. Step 5: Solve for x
    x = 429,975,185,967.36/607,311.60
  6. Step 6: Final answer
    x = 707,997.65

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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.