Home / 908,138.72-1,253,231.04-526,386.72

Finding the Fourth Proportional to 908,138.72, 1,253,231.04 and 526,386.72

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Solution

The fourth proportional to 908,138.72, 1,253,231.04 and 526,386.72 is: 726,413.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,138.72 : 1,253,231.04 = 526,386.72 : x
  2. Step 2: Convert to fraction form
    908,138.72/1,253,231.04 = 526,386.72/x
  3. Step 3: Cross multiply
    908,138.72x = 1,253,231.04 × 526,386.72
  4. Step 4: Simplify right side
    908,138.72x = 659,684,176,547.79
  5. Step 5: Solve for x
    x = 659,684,176,547.79/908,138.72
  6. Step 6: Final answer
    x = 726,413.45

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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.