Home / 1,018,847.92-1,405,424.65-636,210.40

Finding the Fourth Proportional to 1,018,847.92, 1,405,424.65 and 636,210.40

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Solution

The fourth proportional to 1,018,847.92, 1,405,424.65 and 636,210.40 is: 877,604.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,847.92 : 1,405,424.65 = 636,210.40 : x
  2. Step 2: Convert to fraction form
    1,018,847.92/1,405,424.65 = 636,210.40/x
  3. Step 3: Cross multiply
    1,018,847.92x = 1,405,424.65 × 636,210.40
  4. Step 4: Simplify right side
    1,018,847.92x = 894,145,778,746.36
  5. Step 5: Solve for x
    x = 894,145,778,746.36/1,018,847.92
  6. Step 6: Final answer
    x = 877,604.75

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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.