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Finding the Fourth Proportional to 707,017.96, 975,665.16 and 384,720.58

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Solution

The fourth proportional to 707,017.96, 975,665.16 and 384,720.58 is: 530,903.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,017.96 : 975,665.16 = 384,720.58 : x
  2. Step 2: Convert to fraction form
    707,017.96/975,665.16 = 384,720.58/x
  3. Step 3: Cross multiply
    707,017.96x = 975,665.16 × 384,720.58
  4. Step 4: Simplify right side
    707,017.96x = 375,358,466,240.99
  5. Step 5: Solve for x
    x = 375,358,466,240.99/707,017.96
  6. Step 6: Final answer
    x = 530,903.72

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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.