Home / 989,590.61-1,484,181.79-483,632.21

Finding the Fourth Proportional to 989,590.61, 1,484,181.79 and 483,632.21

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Solution

The fourth proportional to 989,590.61, 1,484,181.79 and 483,632.21 is: 725,348.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,590.61 : 1,484,181.79 = 483,632.21 : x
  2. Step 2: Convert to fraction form
    989,590.61/1,484,181.79 = 483,632.21/x
  3. Step 3: Cross multiply
    989,590.61x = 1,484,181.79 × 483,632.21
  4. Step 4: Simplify right side
    989,590.61x = 717,798,110,509.47
  5. Step 5: Solve for x
    x = 717,798,110,509.47/989,590.61
  6. Step 6: Final answer
    x = 725,348.55

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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.