Home / 758,890.48-1,047,335.12-419,424.32

Finding the Fourth Proportional to 758,890.48, 1,047,335.12 and 419,424.32

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Solution

The fourth proportional to 758,890.48, 1,047,335.12 and 419,424.32 is: 578,842.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,890.48 : 1,047,335.12 = 419,424.32 : x
  2. Step 2: Convert to fraction form
    758,890.48/1,047,335.12 = 419,424.32/x
  3. Step 3: Cross multiply
    758,890.48x = 1,047,335.12 × 419,424.32
  4. Step 4: Simplify right side
    758,890.48x = 439,277,820,518.12
  5. Step 5: Solve for x
    x = 439,277,820,518.12/758,890.48
  6. Step 6: Final answer
    x = 578,842.18

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Double scale
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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.