Home / 875,628.80-1,314,026.40-402,070.40

Finding the Fourth Proportional to 875,628.80, 1,314,026.40 and 402,070.40

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Solution

The fourth proportional to 875,628.80, 1,314,026.40 and 402,070.40 is: 603,373.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,628.80 : 1,314,026.40 = 402,070.40 : x
  2. Step 2: Convert to fraction form
    875,628.80/1,314,026.40 = 402,070.40/x
  3. Step 3: Cross multiply
    875,628.80x = 1,314,026.40 × 402,070.40
  4. Step 4: Simplify right side
    875,628.80x = 528,331,120,258.56
  5. Step 5: Solve for x
    x = 528,331,120,258.56/875,628.80
  6. Step 6: Final answer
    x = 603,373.39

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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.