Home / 947,612.61-1,421,339.06-407,847.09

Finding the Fourth Proportional to 947,612.61, 1,421,339.06 and 407,847.09

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Solution

The fourth proportional to 947,612.61, 1,421,339.06 and 407,847.09 is: 611,736.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,612.61 : 1,421,339.06 = 407,847.09 : x
  2. Step 2: Convert to fraction form
    947,612.61/1,421,339.06 = 407,847.09/x
  3. Step 3: Cross multiply
    947,612.61x = 1,421,339.06 × 407,847.09
  4. Step 4: Simplify right side
    947,612.61x = 579,688,997,485.10
  5. Step 5: Solve for x
    x = 579,688,997,485.10/947,612.61
  6. Step 6: Final answer
    x = 611,736.26

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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.