Home / 758,837.12-1,047,194.88-419,302.40

Finding the Fourth Proportional to 758,837.12, 1,047,194.88 and 419,302.40

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Solution

The fourth proportional to 758,837.12, 1,047,194.88 and 419,302.40 is: 578,637.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,837.12 : 1,047,194.88 = 419,302.40 : x
  2. Step 2: Convert to fraction form
    758,837.12/1,047,194.88 = 419,302.40/x
  3. Step 3: Cross multiply
    758,837.12x = 1,047,194.88 × 419,302.40
  4. Step 4: Simplify right side
    758,837.12x = 439,091,326,451.71
  5. Step 5: Solve for x
    x = 439,091,326,451.71/758,837.12
  6. Step 6: Final answer
    x = 578,637.12

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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.