Home / 972,431.64-1,342,023-542,795.40

Finding the Fourth Proportional to 972,431.64, 1,342,023 and 542,795.40

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Solution

The fourth proportional to 972,431.64, 1,342,023 and 542,795.40 is: 749,095.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,431.64 : 1,342,023 = 542,795.40 : x
  2. Step 2: Convert to fraction form
    972,431.64/1,342,023 = 542,795.40/x
  3. Step 3: Cross multiply
    972,431.64x = 1,342,023 × 542,795.40
  4. Step 4: Simplify right side
    972,431.64x = 728,443,911,094.20
  5. Step 5: Solve for x
    x = 728,443,911,094.20/972,431.64
  6. Step 6: Final answer
    x = 749,095.24

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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.