Home / 692,315.02-955,394.22-390,509.02

Finding the Fourth Proportional to 692,315.02, 955,394.22 and 390,509.02

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Solution

The fourth proportional to 692,315.02, 955,394.22 and 390,509.02 is: 538,902.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,315.02 : 955,394.22 = 390,509.02 : x
  2. Step 2: Convert to fraction form
    692,315.02/955,394.22 = 390,509.02/x
  3. Step 3: Cross multiply
    692,315.02x = 955,394.22 × 390,509.02
  4. Step 4: Simplify right side
    692,315.02x = 373,090,060,565.86
  5. Step 5: Solve for x
    x = 373,090,060,565.86/692,315.02
  6. Step 6: Final answer
    x = 538,902.16

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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.