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Finding the Fourth Proportional to 525,547.58, 725,255.48 and 283,830.20

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Solution

The fourth proportional to 525,547.58, 725,255.48 and 283,830.20 is: 391,685.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,547.58 : 725,255.48 = 283,830.20 : x
  2. Step 2: Convert to fraction form
    525,547.58/725,255.48 = 283,830.20/x
  3. Step 3: Cross multiply
    525,547.58x = 725,255.48 × 283,830.20
  4. Step 4: Simplify right side
    525,547.58x = 205,849,406,520.35
  5. Step 5: Solve for x
    x = 205,849,406,520.35/525,547.58
  6. Step 6: Final answer
    x = 391,685.58

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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.