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Finding the Fourth Proportional to 575,323.20, 864,021.60 and 556,660.80

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Solution

The fourth proportional to 575,323.20, 864,021.60 and 556,660.80 is: 835,994.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,323.20 : 864,021.60 = 556,660.80 : x
  2. Step 2: Convert to fraction form
    575,323.20/864,021.60 = 556,660.80/x
  3. Step 3: Cross multiply
    575,323.20x = 864,021.60 × 556,660.80
  4. Step 4: Simplify right side
    575,323.20x = 480,966,955,073.28
  5. Step 5: Solve for x
    x = 480,966,955,073.28/575,323.20
  6. Step 6: Final answer
    x = 835,994.37

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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.