Home / 849,681.94-1,172,423.87-487,039.07

Finding the Fourth Proportional to 849,681.94, 1,172,423.87 and 487,039.07

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Solution

The fourth proportional to 849,681.94, 1,172,423.87 and 487,039.07 is: 672,035.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,681.94 : 1,172,423.87 = 487,039.07 : x
  2. Step 2: Convert to fraction form
    849,681.94/1,172,423.87 = 487,039.07/x
  3. Step 3: Cross multiply
    849,681.94x = 1,172,423.87 × 487,039.07
  4. Step 4: Simplify right side
    849,681.94x = 571,016,225,428.48
  5. Step 5: Solve for x
    x = 571,016,225,428.48/849,681.94
  6. Step 6: Final answer
    x = 672,035.27

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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.