Home / 972,547.20-1,342,140.48-542,825.28

Finding the Fourth Proportional to 972,547.20, 1,342,140.48 and 542,825.28

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Solution

The fourth proportional to 972,547.20, 1,342,140.48 and 542,825.28 is: 749,113.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,547.20 : 1,342,140.48 = 542,825.28 : x
  2. Step 2: Convert to fraction form
    972,547.20/1,342,140.48 = 542,825.28/x
  3. Step 3: Cross multiply
    972,547.20x = 1,342,140.48 × 542,825.28
  4. Step 4: Simplify right side
    972,547.20x = 728,547,781,855.34
  5. Step 5: Solve for x
    x = 728,547,781,855.34/972,547.20
  6. Step 6: Final answer
    x = 749,113.03

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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.