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Finding the Fourth Proportional to 403,417.74, 602,175.15 and 355,535.58

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Solution

The fourth proportional to 403,417.74, 602,175.15 and 355,535.58 is: 530,702.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,417.74 : 602,175.15 = 355,535.58 : x
  2. Step 2: Convert to fraction form
    403,417.74/602,175.15 = 355,535.58/x
  3. Step 3: Cross multiply
    403,417.74x = 602,175.15 × 355,535.58
  4. Step 4: Simplify right side
    403,417.74x = 214,094,689,587.79
  5. Step 5: Solve for x
    x = 214,094,689,587.79/403,417.74
  6. Step 6: Final answer
    x = 530,702.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.