Home / 860,328.88-1,187,246.64-478,352.32

Finding the Fourth Proportional to 860,328.88, 1,187,246.64 and 478,352.32

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Solution

The fourth proportional to 860,328.88, 1,187,246.64 and 478,352.32 is: 660,122.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,328.88 : 1,187,246.64 = 478,352.32 : x
  2. Step 2: Convert to fraction form
    860,328.88/1,187,246.64 = 478,352.32/x
  3. Step 3: Cross multiply
    860,328.88x = 1,187,246.64 × 478,352.32
  4. Step 4: Simplify right side
    860,328.88x = 567,922,184,656.21
  5. Step 5: Solve for x
    x = 567,922,184,656.21/860,328.88
  6. Step 6: Final answer
    x = 660,122.19

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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.