Home / 876,075.30-1,209,242.48-513,577.62

Finding the Fourth Proportional to 876,075.30, 1,209,242.48 and 513,577.62

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Solution

The fourth proportional to 876,075.30, 1,209,242.48 and 513,577.62 is: 708,888.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,075.30 : 1,209,242.48 = 513,577.62 : x
  2. Step 2: Convert to fraction form
    876,075.30/1,209,242.48 = 513,577.62/x
  3. Step 3: Cross multiply
    876,075.30x = 1,209,242.48 × 513,577.62
  4. Step 4: Simplify right side
    876,075.30x = 621,039,874,881.30
  5. Step 5: Solve for x
    x = 621,039,874,881.30/876,075.30
  6. Step 6: Final answer
    x = 708,888.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.