Home / 872,533.20-1,307,244.60-539,720.40

Finding the Fourth Proportional to 872,533.20, 1,307,244.60 and 539,720.40

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Solution

The fourth proportional to 872,533.20, 1,307,244.60 and 539,720.40 is: 808,618.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,533.20 : 1,307,244.60 = 539,720.40 : x
  2. Step 2: Convert to fraction form
    872,533.20/1,307,244.60 = 539,720.40/x
  3. Step 3: Cross multiply
    872,533.20x = 1,307,244.60 × 539,720.40
  4. Step 4: Simplify right side
    872,533.20x = 705,546,578,409.84
  5. Step 5: Solve for x
    x = 705,546,578,409.84/872,533.20
  6. Step 6: Final answer
    x = 808,618.60

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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.