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Finding the Fourth Proportional to 707,018.96, 975,666.54 and 384,721.58

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Solution

The fourth proportional to 707,018.96, 975,666.54 and 384,721.58 is: 530,905.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,018.96 : 975,666.54 = 384,721.58 : x
  2. Step 2: Convert to fraction form
    707,018.96/975,666.54 = 384,721.58/x
  3. Step 3: Cross multiply
    707,018.96x = 975,666.54 × 384,721.58
  4. Step 4: Simplify right side
    707,018.96x = 375,359,972,821.93
  5. Step 5: Solve for x
    x = 375,359,972,821.93/707,018.96
  6. Step 6: Final answer
    x = 530,905.10

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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.