Home / 838,313.40-1,254,999.06-553,481.40

Finding the Fourth Proportional to 838,313.40, 1,254,999.06 and 553,481.40

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Solution

The fourth proportional to 838,313.40, 1,254,999.06 and 553,481.40 is: 828,590.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,313.40 : 1,254,999.06 = 553,481.40 : x
  2. Step 2: Convert to fraction form
    838,313.40/1,254,999.06 = 553,481.40/x
  3. Step 3: Cross multiply
    838,313.40x = 1,254,999.06 × 553,481.40
  4. Step 4: Simplify right side
    838,313.40x = 694,618,636,727.48
  5. Step 5: Solve for x
    x = 694,618,636,727.48/838,313.40
  6. Step 6: Final answer
    x = 828,590.64

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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.