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Finding the Fourth Proportional to 607,314.80, 910,972.20 and 561,695.60

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Solution

The fourth proportional to 607,314.80, 910,972.20 and 561,695.60 is: 842,543.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,314.80 : 910,972.20 = 561,695.60 : x
  2. Step 2: Convert to fraction form
    607,314.80/910,972.20 = 561,695.60/x
  3. Step 3: Cross multiply
    607,314.80x = 910,972.20 × 561,695.60
  4. Step 4: Simplify right side
    607,314.80x = 511,689,076,462.32
  5. Step 5: Solve for x
    x = 511,689,076,462.32/607,314.80
  6. Step 6: Final answer
    x = 842,543.40

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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.