Home / 897,384.32-1,238,404.90-489,486.04

Finding the Fourth Proportional to 897,384.32, 1,238,404.90 and 489,486.04

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Solution

The fourth proportional to 897,384.32, 1,238,404.90 and 489,486.04 is: 675,498.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,384.32 : 1,238,404.90 = 489,486.04 : x
  2. Step 2: Convert to fraction form
    897,384.32/1,238,404.90 = 489,486.04/x
  3. Step 3: Cross multiply
    897,384.32x = 1,238,404.90 × 489,486.04
  4. Step 4: Simplify right side
    897,384.32x = 606,181,910,417.60
  5. Step 5: Solve for x
    x = 606,181,910,417.60/897,384.32
  6. Step 6: Final answer
    x = 675,498.67

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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.