Home / 778,830.40-1,167,856.80-357,630.40

Finding the Fourth Proportional to 778,830.40, 1,167,856.80 and 357,630.40

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Solution

The fourth proportional to 778,830.40, 1,167,856.80 and 357,630.40 is: 536,267.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,830.40 : 1,167,856.80 = 357,630.40 : x
  2. Step 2: Convert to fraction form
    778,830.40/1,167,856.80 = 357,630.40/x
  3. Step 3: Cross multiply
    778,830.40x = 1,167,856.80 × 357,630.40
  4. Step 4: Simplify right side
    778,830.40x = 417,661,094,526.72
  5. Step 5: Solve for x
    x = 417,661,094,526.72/778,830.40
  6. Step 6: Final answer
    x = 536,267.07

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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.