Home / 860,311.35-1,187,225.73-478,315.35

Finding the Fourth Proportional to 860,311.35, 1,187,225.73 and 478,315.35

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Solution

The fourth proportional to 860,311.35, 1,187,225.73 and 478,315.35 is: 660,073.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,311.35 : 1,187,225.73 = 478,315.35 : x
  2. Step 2: Convert to fraction form
    860,311.35/1,187,225.73 = 478,315.35/x
  3. Step 3: Cross multiply
    860,311.35x = 1,187,225.73 × 478,315.35
  4. Step 4: Simplify right side
    860,311.35x = 567,868,290,573.96
  5. Step 5: Solve for x
    x = 567,868,290,573.96/860,311.35
  6. Step 6: Final answer
    x = 660,073.00

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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.