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Finding the Fourth Proportional to 898,693.95, 1,348,355.79 and 561,339.63

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Solution

The fourth proportional to 898,693.95, 1,348,355.79 and 561,339.63 is: 842,206.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,693.95 : 1,348,355.79 = 561,339.63 : x
  2. Step 2: Convert to fraction form
    898,693.95/1,348,355.79 = 561,339.63/x
  3. Step 3: Cross multiply
    898,693.95x = 1,348,355.79 × 561,339.63
  4. Step 4: Simplify right side
    898,693.95x = 756,885,540,266.96
  5. Step 5: Solve for x
    x = 756,885,540,266.96/898,693.95
  6. Step 6: Final answer
    x = 842,206.12

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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.