Home / 890,607.60-1,336,746.60-470,185.20

Finding the Fourth Proportional to 890,607.60, 1,336,746.60 and 470,185.20

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Solution

The fourth proportional to 890,607.60, 1,336,746.60 and 470,185.20 is: 705,718.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,607.60 : 1,336,746.60 = 470,185.20 : x
  2. Step 2: Convert to fraction form
    890,607.60/1,336,746.60 = 470,185.20/x
  3. Step 3: Cross multiply
    890,607.60x = 1,336,746.60 × 470,185.20
  4. Step 4: Simplify right side
    890,607.60x = 628,518,467,470.32
  5. Step 5: Solve for x
    x = 628,518,467,470.32/890,607.60
  6. Step 6: Final answer
    x = 705,718.73

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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.