Home / 679,746.84-1,019,561.28-319,832.22

Finding the Fourth Proportional to 679,746.84, 1,019,561.28 and 319,832.22

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Solution

The fourth proportional to 679,746.84, 1,019,561.28 and 319,832.22 is: 479,720.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,746.84 : 1,019,561.28 = 319,832.22 : x
  2. Step 2: Convert to fraction form
    679,746.84/1,019,561.28 = 319,832.22/x
  3. Step 3: Cross multiply
    679,746.84x = 1,019,561.28 × 319,832.22
  4. Step 4: Simplify right side
    679,746.84x = 326,088,547,608.44
  5. Step 5: Solve for x
    x = 326,088,547,608.44/679,746.84
  6. Step 6: Final answer
    x = 479,720.58

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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.