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Finding the Fourth Proportional to 407,411.60, 611,117.40 and 302,435.60

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Solution

The fourth proportional to 407,411.60, 611,117.40 and 302,435.60 is: 453,653.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,411.60 : 611,117.40 = 302,435.60 : x
  2. Step 2: Convert to fraction form
    407,411.60/611,117.40 = 302,435.60/x
  3. Step 3: Cross multiply
    407,411.60x = 611,117.40 × 302,435.60
  4. Step 4: Simplify right side
    407,411.60x = 184,823,657,539.44
  5. Step 5: Solve for x
    x = 184,823,657,539.44/407,411.60
  6. Step 6: Final answer
    x = 453,653.40

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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.