Home / 716,979.20-1,075,209.60-361,875.20

Finding the Fourth Proportional to 716,979.20, 1,075,209.60 and 361,875.20

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Solution

The fourth proportional to 716,979.20, 1,075,209.60 and 361,875.20 is: 542,681.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,979.20 : 1,075,209.60 = 361,875.20 : x
  2. Step 2: Convert to fraction form
    716,979.20/1,075,209.60 = 361,875.20/x
  3. Step 3: Cross multiply
    716,979.20x = 1,075,209.60 × 361,875.20
  4. Step 4: Simplify right side
    716,979.20x = 389,091,689,041.92
  5. Step 5: Solve for x
    x = 389,091,689,041.92/716,979.20
  6. Step 6: Final answer
    x = 542,681.98

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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.