Home / 1,127,018.48-1,690,631.92-407,539.76

Finding the Fourth Proportional to 1,127,018.48, 1,690,631.92 and 407,539.76

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Solution

The fourth proportional to 1,127,018.48, 1,690,631.92 and 407,539.76 is: 611,347.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,018.48 : 1,690,631.92 = 407,539.76 : x
  2. Step 2: Convert to fraction form
    1,127,018.48/1,690,631.92 = 407,539.76/x
  3. Step 3: Cross multiply
    1,127,018.48x = 1,690,631.92 × 407,539.76
  4. Step 4: Simplify right side
    1,127,018.48x = 688,999,726,925.14
  5. Step 5: Solve for x
    x = 688,999,726,925.14/1,127,018.48
  6. Step 6: Final answer
    x = 611,347.32

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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.