Home / 824,985.60-1,235,404.80-613,478.40

Finding the Fourth Proportional to 824,985.60, 1,235,404.80 and 613,478.40

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Solution

The fourth proportional to 824,985.60, 1,235,404.80 and 613,478.40 is: 918,675.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,985.60 : 1,235,404.80 = 613,478.40 : x
  2. Step 2: Convert to fraction form
    824,985.60/1,235,404.80 = 613,478.40/x
  3. Step 3: Cross multiply
    824,985.60x = 1,235,404.80 × 613,478.40
  4. Step 4: Simplify right side
    824,985.60x = 757,894,160,056.32
  5. Step 5: Solve for x
    x = 757,894,160,056.32/824,985.60
  6. Step 6: Final answer
    x = 918,675.62

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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.