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Finding the Fourth Proportional to 570,714.93, 856,129.01 and 210,980.03

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Solution

The fourth proportional to 570,714.93, 856,129.01 and 210,980.03 is: 316,490.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,714.93 : 856,129.01 = 210,980.03 : x
  2. Step 2: Convert to fraction form
    570,714.93/856,129.01 = 210,980.03/x
  3. Step 3: Cross multiply
    570,714.93x = 856,129.01 × 210,980.03
  4. Step 4: Simplify right side
    570,714.93x = 180,626,118,878.13
  5. Step 5: Solve for x
    x = 180,626,118,878.13/570,714.93
  6. Step 6: Final answer
    x = 316,490.96

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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.