Home / 1,007,484.32-1,390,278.48-554,690.72

Finding the Fourth Proportional to 1,007,484.32, 1,390,278.48 and 554,690.72

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Solution

The fourth proportional to 1,007,484.32, 1,390,278.48 and 554,690.72 is: 765,445.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,484.32 : 1,390,278.48 = 554,690.72 : x
  2. Step 2: Convert to fraction form
    1,007,484.32/1,390,278.48 = 554,690.72/x
  3. Step 3: Cross multiply
    1,007,484.32x = 1,390,278.48 × 554,690.72
  4. Step 4: Simplify right side
    1,007,484.32x = 771,174,571,071.71
  5. Step 5: Solve for x
    x = 771,174,571,071.71/1,007,484.32
  6. Step 6: Final answer
    x = 765,445.73

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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.