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Finding the Fourth Proportional to 1,007,527, 1,390,387.26 and 554,818

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Solution

The fourth proportional to 1,007,527, 1,390,387.26 and 554,818 is: 765,648.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,527 : 1,390,387.26 = 554,818 : x
  2. Step 2: Convert to fraction form
    1,007,527/1,390,387.26 = 554,818/x
  3. Step 3: Cross multiply
    1,007,527x = 1,390,387.26 × 554,818
  4. Step 4: Simplify right side
    1,007,527x = 771,411,878,818.68
  5. Step 5: Solve for x
    x = 771,411,878,818.68/1,007,527
  6. Step 6: Final answer
    x = 765,648.84

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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.