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Finding the Fourth Proportional to 875,019.60, 1,311,751.80 and 575,643.60

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Solution

The fourth proportional to 875,019.60, 1,311,751.80 and 575,643.60 is: 862,953.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,019.60 : 1,311,751.80 = 575,643.60 : x
  2. Step 2: Convert to fraction form
    875,019.60/1,311,751.80 = 575,643.60/x
  3. Step 3: Cross multiply
    875,019.60x = 1,311,751.80 × 575,643.60
  4. Step 4: Simplify right side
    875,019.60x = 755,101,528,458.48
  5. Step 5: Solve for x
    x = 755,101,528,458.48/875,019.60
  6. Step 6: Final answer
    x = 862,953.85

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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.