Home / 724,784.12-999,853.26-470,215.16

Finding the Fourth Proportional to 724,784.12, 999,853.26 and 470,215.16

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Solution

The fourth proportional to 724,784.12, 999,853.26 and 470,215.16 is: 648,670.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,784.12 : 999,853.26 = 470,215.16 : x
  2. Step 2: Convert to fraction form
    724,784.12/999,853.26 = 470,215.16/x
  3. Step 3: Cross multiply
    724,784.12x = 999,853.26 × 470,215.16
  4. Step 4: Simplify right side
    724,784.12x = 470,146,160,627.42
  5. Step 5: Solve for x
    x = 470,146,160,627.42/724,784.12
  6. Step 6: Final answer
    x = 648,670.61

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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.