Home / 808,429.60-1,210,894.80-434,015.20

Finding the Fourth Proportional to 808,429.60, 1,210,894.80 and 434,015.20

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Solution

The fourth proportional to 808,429.60, 1,210,894.80 and 434,015.20 is: 650,083.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,429.60 : 1,210,894.80 = 434,015.20 : x
  2. Step 2: Convert to fraction form
    808,429.60/1,210,894.80 = 434,015.20/x
  3. Step 3: Cross multiply
    808,429.60x = 1,210,894.80 × 434,015.20
  4. Step 4: Simplify right side
    808,429.60x = 525,546,748,800.96
  5. Step 5: Solve for x
    x = 525,546,748,800.96/808,429.60
  6. Step 6: Final answer
    x = 650,083.51

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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.