Home / 631,386.80-946,043.40-525,633.20

Finding the Fourth Proportional to 631,386.80, 946,043.40 and 525,633.20

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Solution

The fourth proportional to 631,386.80, 946,043.40 and 525,633.20 is: 787,586.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,386.80 : 946,043.40 = 525,633.20 : x
  2. Step 2: Convert to fraction form
    631,386.80/946,043.40 = 525,633.20/x
  3. Step 3: Cross multiply
    631,386.80x = 946,043.40 × 525,633.20
  4. Step 4: Simplify right side
    631,386.80x = 497,271,819,680.88
  5. Step 5: Solve for x
    x = 497,271,819,680.88/631,386.80
  6. Step 6: Final answer
    x = 787,586.66

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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.