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Finding the Fourth Proportional to 536,439.81, 740,612.04 and 355,307.01

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Solution

The fourth proportional to 536,439.81, 740,612.04 and 355,307.01 is: 490,539.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,439.81 : 740,612.04 = 355,307.01 : x
  2. Step 2: Convert to fraction form
    536,439.81/740,612.04 = 355,307.01/x
  3. Step 3: Cross multiply
    536,439.81x = 740,612.04 × 355,307.01
  4. Step 4: Simplify right side
    536,439.81x = 263,144,649,502.40
  5. Step 5: Solve for x
    x = 263,144,649,502.40/536,439.81
  6. Step 6: Final answer
    x = 490,539.00

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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.