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Finding the Fourth Proportional to 540,017.20, 808,276.20 and 477,031.60

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Solution

The fourth proportional to 540,017.20, 808,276.20 and 477,031.60 is: 714,001.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,017.20 : 808,276.20 = 477,031.60 : x
  2. Step 2: Convert to fraction form
    540,017.20/808,276.20 = 477,031.60/x
  3. Step 3: Cross multiply
    540,017.20x = 808,276.20 × 477,031.60
  4. Step 4: Simplify right side
    540,017.20x = 385,573,288,927.92
  5. Step 5: Solve for x
    x = 385,573,288,927.92/540,017.20
  6. Step 6: Final answer
    x = 714,001.87

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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.