Home / 910,801.90-1,364,015.85-489,148.30

Finding the Fourth Proportional to 910,801.90, 1,364,015.85 and 489,148.30

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Solution

The fourth proportional to 910,801.90, 1,364,015.85 and 489,148.30 is: 732,547.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,801.90 : 1,364,015.85 = 489,148.30 : x
  2. Step 2: Convert to fraction form
    910,801.90/1,364,015.85 = 489,148.30/x
  3. Step 3: Cross multiply
    910,801.90x = 1,364,015.85 × 489,148.30
  4. Step 4: Simplify right side
    910,801.90x = 667,206,034,200.56
  5. Step 5: Solve for x
    x = 667,206,034,200.56/910,801.90
  6. Step 6: Final answer
    x = 732,547.92

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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.