Home / 875,221.90-1,310,208.45-520,053.10

Finding the Fourth Proportional to 875,221.90, 1,310,208.45 and 520,053.10

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Solution

The fourth proportional to 875,221.90, 1,310,208.45 and 520,053.10 is: 778,520.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,221.90 : 1,310,208.45 = 520,053.10 : x
  2. Step 2: Convert to fraction form
    875,221.90/1,310,208.45 = 520,053.10/x
  3. Step 3: Cross multiply
    875,221.90x = 1,310,208.45 × 520,053.10
  4. Step 4: Simplify right side
    875,221.90x = 681,377,966,068.70
  5. Step 5: Solve for x
    x = 681,377,966,068.70/875,221.90
  6. Step 6: Final answer
    x = 778,520.24

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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.