Home / 860,417.40-1,290,626.10-545,230.20

Finding the Fourth Proportional to 860,417.40, 1,290,626.10 and 545,230.20

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Solution

The fourth proportional to 860,417.40, 1,290,626.10 and 545,230.20 is: 817,845.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,417.40 : 1,290,626.10 = 545,230.20 : x
  2. Step 2: Convert to fraction form
    860,417.40/1,290,626.10 = 545,230.20/x
  3. Step 3: Cross multiply
    860,417.40x = 1,290,626.10 × 545,230.20
  4. Step 4: Simplify right side
    860,417.40x = 703,688,326,628.22
  5. Step 5: Solve for x
    x = 703,688,326,628.22/860,417.40
  6. Step 6: Final answer
    x = 817,845.30

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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.