Home / 790,816.91-1,185,980.02-285,312.17

Finding the Fourth Proportional to 790,816.91, 1,185,980.02 and 285,312.17

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Solution

The fourth proportional to 790,816.91, 1,185,980.02 and 285,312.17 is: 427,879.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,816.91 : 1,185,980.02 = 285,312.17 : x
  2. Step 2: Convert to fraction form
    790,816.91/1,185,980.02 = 285,312.17/x
  3. Step 3: Cross multiply
    790,816.91x = 1,185,980.02 × 285,312.17
  4. Step 4: Simplify right side
    790,816.91x = 338,374,533,082.84
  5. Step 5: Solve for x
    x = 338,374,533,082.84/790,816.91
  6. Step 6: Final answer
    x = 427,879.74

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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.