Home / 918,887.92-1,267,879.49-536,840.89

Finding the Fourth Proportional to 918,887.92, 1,267,879.49 and 536,840.89

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Solution

The fourth proportional to 918,887.92, 1,267,879.49 and 536,840.89 is: 740,731.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,887.92 : 1,267,879.49 = 536,840.89 : x
  2. Step 2: Convert to fraction form
    918,887.92/1,267,879.49 = 536,840.89/x
  3. Step 3: Cross multiply
    918,887.92x = 1,267,879.49 × 536,840.89
  4. Step 4: Simplify right side
    918,887.92x = 680,649,547,484.95
  5. Step 5: Solve for x
    x = 680,649,547,484.95/918,887.92
  6. Step 6: Final answer
    x = 740,731.85

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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.