Home / 724,622.40-1,085,621.40-619,646.40

Finding the Fourth Proportional to 724,622.40, 1,085,621.40 and 619,646.40

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Solution

The fourth proportional to 724,622.40, 1,085,621.40 and 619,646.40 is: 928,347.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,622.40 : 1,085,621.40 = 619,646.40 : x
  2. Step 2: Convert to fraction form
    724,622.40/1,085,621.40 = 619,646.40/x
  3. Step 3: Cross multiply
    724,622.40x = 1,085,621.40 × 619,646.40
  4. Step 4: Simplify right side
    724,622.40x = 672,701,392,272.96
  5. Step 5: Solve for x
    x = 672,701,392,272.96/724,622.40
  6. Step 6: Final answer
    x = 928,347.50

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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.