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Finding the Fourth Proportional to 549,547.60, 824,359.80 and 217,080.40

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Solution

The fourth proportional to 549,547.60, 824,359.80 and 217,080.40 is: 325,635.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,547.60 : 824,359.80 = 217,080.40 : x
  2. Step 2: Convert to fraction form
    549,547.60/824,359.80 = 217,080.40/x
  3. Step 3: Cross multiply
    549,547.60x = 824,359.80 × 217,080.40
  4. Step 4: Simplify right side
    549,547.60x = 178,952,355,127.92
  5. Step 5: Solve for x
    x = 178,952,355,127.92/549,547.60
  6. Step 6: Final answer
    x = 325,635.77

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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.