Home / 860,117.67-1,290,332.07-354,397.34

Finding the Fourth Proportional to 860,117.67, 1,290,332.07 and 354,397.34

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Solution

The fourth proportional to 860,117.67, 1,290,332.07 and 354,397.34 is: 531,660.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,117.67 : 1,290,332.07 = 354,397.34 : x
  2. Step 2: Convert to fraction form
    860,117.67/1,290,332.07 = 354,397.34/x
  3. Step 3: Cross multiply
    860,117.67x = 1,290,332.07 × 354,397.34
  4. Step 4: Simplify right side
    860,117.67x = 457,290,256,550.52
  5. Step 5: Solve for x
    x = 457,290,256,550.52/860,117.67
  6. Step 6: Final answer
    x = 531,660.11

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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.