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Finding the Fourth Proportional to 553,700.70, 828,801.45 and 434,727.90

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Solution

The fourth proportional to 553,700.70, 828,801.45 and 434,727.90 is: 650,718.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,700.70 : 828,801.45 = 434,727.90 : x
  2. Step 2: Convert to fraction form
    553,700.70/828,801.45 = 434,727.90/x
  3. Step 3: Cross multiply
    553,700.70x = 828,801.45 × 434,727.90
  4. Step 4: Simplify right side
    553,700.70x = 360,303,113,875.46
  5. Step 5: Solve for x
    x = 360,303,113,875.46/553,700.70
  6. Step 6: Final answer
    x = 650,718.18

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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.