Home / 860,109.80-1,187,116.04-569,724.80

Finding the Fourth Proportional to 860,109.80, 1,187,116.04 and 569,724.80

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Solution

The fourth proportional to 860,109.80, 1,187,116.04 and 569,724.80 is: 786,329.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,109.80 : 1,187,116.04 = 569,724.80 : x
  2. Step 2: Convert to fraction form
    860,109.80/1,187,116.04 = 569,724.80/x
  3. Step 3: Cross multiply
    860,109.80x = 1,187,116.04 × 569,724.80
  4. Step 4: Simplify right side
    860,109.80x = 676,329,448,465.79
  5. Step 5: Solve for x
    x = 676,329,448,465.79/860,109.80
  6. Step 6: Final answer
    x = 786,329.20

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1.5x scale

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.