Home / 860,054.40-1,289,620.80-360,854.40

Finding the Fourth Proportional to 860,054.40, 1,289,620.80 and 360,854.40

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Solution

The fourth proportional to 860,054.40, 1,289,620.80 and 360,854.40 is: 541,088.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,054.40 : 1,289,620.80 = 360,854.40 : x
  2. Step 2: Convert to fraction form
    860,054.40/1,289,620.80 = 360,854.40/x
  3. Step 3: Cross multiply
    860,054.40x = 1,289,620.80 × 360,854.40
  4. Step 4: Simplify right side
    860,054.40x = 465,365,340,011.52
  5. Step 5: Solve for x
    x = 465,365,340,011.52/860,054.40
  6. Step 6: Final answer
    x = 541,088.26

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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.