Home / 722,572.47-997,206.26-400,312.35

Finding the Fourth Proportional to 722,572.47, 997,206.26 and 400,312.35

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Solution

The fourth proportional to 722,572.47, 997,206.26 and 400,312.35 is: 552,462.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,572.47 : 997,206.26 = 400,312.35 : x
  2. Step 2: Convert to fraction form
    722,572.47/997,206.26 = 400,312.35/x
  3. Step 3: Cross multiply
    722,572.47x = 997,206.26 × 400,312.35
  4. Step 4: Simplify right side
    722,572.47x = 399,193,979,373.75
  5. Step 5: Solve for x
    x = 399,193,979,373.75/722,572.47
  6. Step 6: Final answer
    x = 552,462.20

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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.