Home / 876,368.47-1,209,389.30-473,960.47

Finding the Fourth Proportional to 876,368.47, 1,209,389.30 and 473,960.47

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Solution

The fourth proportional to 876,368.47, 1,209,389.30 and 473,960.47 is: 654,065.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,368.47 : 1,209,389.30 = 473,960.47 : x
  2. Step 2: Convert to fraction form
    876,368.47/1,209,389.30 = 473,960.47/x
  3. Step 3: Cross multiply
    876,368.47x = 1,209,389.30 × 473,960.47
  4. Step 4: Simplify right side
    876,368.47x = 573,202,721,040.97
  5. Step 5: Solve for x
    x = 573,202,721,040.97/876,368.47
  6. Step 6: Final answer
    x = 654,065.89

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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.