Home / 860,622.63-1,187,701.29-478,641.21

Finding the Fourth Proportional to 860,622.63, 1,187,701.29 and 478,641.21

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Solution

The fourth proportional to 860,622.63, 1,187,701.29 and 478,641.21 is: 660,548.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,622.63 : 1,187,701.29 = 478,641.21 : x
  2. Step 2: Convert to fraction form
    860,622.63/1,187,701.29 = 478,641.21/x
  3. Step 3: Cross multiply
    860,622.63x = 1,187,701.29 × 478,641.21
  4. Step 4: Simplify right side
    860,622.63x = 568,482,782,564.16
  5. Step 5: Solve for x
    x = 568,482,782,564.16/860,622.63
  6. Step 6: Final answer
    x = 660,548.26

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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.