Home / 553,656.20-828,734.70-434,683.40

Finding the Fourth Proportional to 553,656.20, 828,734.70 and 434,683.40

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Solution

The fourth proportional to 553,656.20, 828,734.70 and 434,683.40 is: 650,651.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,656.20 : 828,734.70 = 434,683.40 : x
  2. Step 2: Convert to fraction form
    553,656.20/828,734.70 = 434,683.40/x
  3. Step 3: Cross multiply
    553,656.20x = 828,734.70 × 434,683.40
  4. Step 4: Simplify right side
    553,656.20x = 360,237,217,093.98
  5. Step 5: Solve for x
    x = 360,237,217,093.98/553,656.20
  6. Step 6: Final answer
    x = 650,651.46

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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.