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Finding the Fourth Proportional to 470,827.20, 706,240.80 and 452,456.40

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Solution

The fourth proportional to 470,827.20, 706,240.80 and 452,456.40 is: 678,684.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,827.20 : 706,240.80 = 452,456.40 : x
  2. Step 2: Convert to fraction form
    470,827.20/706,240.80 = 452,456.40/x
  3. Step 3: Cross multiply
    470,827.20x = 706,240.80 × 452,456.40
  4. Step 4: Simplify right side
    470,827.20x = 319,543,169,901.12
  5. Step 5: Solve for x
    x = 319,543,169,901.12/470,827.20
  6. Step 6: Final answer
    x = 678,684.60

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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.