Home / 849,756.96-1,275,422.76-429,328.08

Finding the Fourth Proportional to 849,756.96, 1,275,422.76 and 429,328.08

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Solution

The fourth proportional to 849,756.96, 1,275,422.76 and 429,328.08 is: 644,389.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,756.96 : 1,275,422.76 = 429,328.08 : x
  2. Step 2: Convert to fraction form
    849,756.96/1,275,422.76 = 429,328.08/x
  3. Step 3: Cross multiply
    849,756.96x = 1,275,422.76 × 429,328.08
  4. Step 4: Simplify right side
    849,756.96x = 547,574,804,739.10
  5. Step 5: Solve for x
    x = 547,574,804,739.10/849,756.96
  6. Step 6: Final answer
    x = 644,389.90

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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.