Home / 646,507.40-891,721.37-549,038.27

Finding the Fourth Proportional to 646,507.40, 891,721.37 and 549,038.27

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Solution

The fourth proportional to 646,507.40, 891,721.37 and 549,038.27 is: 757,283.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,507.40 : 891,721.37 = 549,038.27 : x
  2. Step 2: Convert to fraction form
    646,507.40/891,721.37 = 549,038.27/x
  3. Step 3: Cross multiply
    646,507.40x = 891,721.37 × 549,038.27
  4. Step 4: Simplify right side
    646,507.40x = 489,589,161,908.73
  5. Step 5: Solve for x
    x = 489,589,161,908.73/646,507.40
  6. Step 6: Final answer
    x = 757,283.16

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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.