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Finding the Fourth Proportional to 522,002.48, 720,710.46 and 400,927.32

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Solution

The fourth proportional to 522,002.48, 720,710.46 and 400,927.32 is: 553,546.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,002.48 : 720,710.46 = 400,927.32 : x
  2. Step 2: Convert to fraction form
    522,002.48/720,710.46 = 400,927.32/x
  3. Step 3: Cross multiply
    522,002.48x = 720,710.46 × 400,927.32
  4. Step 4: Simplify right side
    522,002.48x = 288,952,513,223.77
  5. Step 5: Solve for x
    x = 288,952,513,223.77/522,002.48
  6. Step 6: Final answer
    x = 553,546.25

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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.