Home / 860,307.12-1,186,887.83-492,587.75

Finding the Fourth Proportional to 860,307.12, 1,186,887.83 and 492,587.75

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Solution

The fourth proportional to 860,307.12, 1,186,887.83 and 492,587.75 is: 679,578.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,307.12 : 1,186,887.83 = 492,587.75 : x
  2. Step 2: Convert to fraction form
    860,307.12/1,186,887.83 = 492,587.75/x
  3. Step 3: Cross multiply
    860,307.12x = 1,186,887.83 × 492,587.75
  4. Step 4: Simplify right side
    860,307.12x = 584,646,407,417.83
  5. Step 5: Solve for x
    x = 584,646,407,417.83/860,307.12
  6. Step 6: Final answer
    x = 679,578.71

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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.