Home / 1,288,533.47-1,778,190.77-707,770.15

Finding the Fourth Proportional to 1,288,533.47, 1,778,190.77 and 707,770.15

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Solution

The fourth proportional to 1,288,533.47, 1,778,190.77 and 707,770.15 is: 976,730.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,533.47 : 1,778,190.77 = 707,770.15 : x
  2. Step 2: Convert to fraction form
    1,288,533.47/1,778,190.77 = 707,770.15/x
  3. Step 3: Cross multiply
    1,288,533.47x = 1,778,190.77 × 707,770.15
  4. Step 4: Simplify right side
    1,288,533.47x = 1,258,550,355,337.79
  5. Step 5: Solve for x
    x = 1,258,550,355,337.79/1,288,533.47
  6. Step 6: Final answer
    x = 976,730.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.