Home / 1,018,990.50-1,528,484.77-260,830.77

Finding the Fourth Proportional to 1,018,990.50, 1,528,484.77 and 260,830.77

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Solution

The fourth proportional to 1,018,990.50, 1,528,484.77 and 260,830.77 is: 391,245.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,990.50 : 1,528,484.77 = 260,830.77 : x
  2. Step 2: Convert to fraction form
    1,018,990.50/1,528,484.77 = 260,830.77/x
  3. Step 3: Cross multiply
    1,018,990.50x = 1,528,484.77 × 260,830.77
  4. Step 4: Simplify right side
    1,018,990.50x = 398,675,859,492.37
  5. Step 5: Solve for x
    x = 398,675,859,492.37/1,018,990.50
  6. Step 6: Final answer
    x = 391,245.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.