Home / 745,862.02-1,029,019.70-487,886.09

Finding the Fourth Proportional to 745,862.02, 1,029,019.70 and 487,886.09

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Solution

The fourth proportional to 745,862.02, 1,029,019.70 and 487,886.09 is: 673,106.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,862.02 : 1,029,019.70 = 487,886.09 : x
  2. Step 2: Convert to fraction form
    745,862.02/1,029,019.70 = 487,886.09/x
  3. Step 3: Cross multiply
    745,862.02x = 1,029,019.70 × 487,886.09
  4. Step 4: Simplify right side
    745,862.02x = 502,044,391,296.23
  5. Step 5: Solve for x
    x = 502,044,391,296.23/745,862.02
  6. Step 6: Final answer
    x = 673,106.25

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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.