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Finding the Fourth Proportional to 660,016.77, 910,823.51 and 358,210.77

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Solution

The fourth proportional to 660,016.77, 910,823.51 and 358,210.77 is: 494,331.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,016.77 : 910,823.51 = 358,210.77 : x
  2. Step 2: Convert to fraction form
    660,016.77/910,823.51 = 358,210.77/x
  3. Step 3: Cross multiply
    660,016.77x = 910,823.51 × 358,210.77
  4. Step 4: Simplify right side
    660,016.77x = 326,266,790,851.20
  5. Step 5: Solve for x
    x = 326,266,790,851.20/660,016.77
  6. Step 6: Final answer
    x = 494,331.06

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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.