Home / 778,701.60-1,168,271.10-379,355.40

Finding the Fourth Proportional to 778,701.60, 1,168,271.10 and 379,355.40

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Solution

The fourth proportional to 778,701.60, 1,168,271.10 and 379,355.40 is: 569,139.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,701.60 : 1,168,271.10 = 379,355.40 : x
  2. Step 2: Convert to fraction form
    778,701.60/1,168,271.10 = 379,355.40/x
  3. Step 3: Cross multiply
    778,701.60x = 1,168,271.10 × 379,355.40
  4. Step 4: Simplify right side
    778,701.60x = 443,189,950,448.94
  5. Step 5: Solve for x
    x = 443,189,950,448.94/778,701.60
  6. Step 6: Final answer
    x = 569,139.64

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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.