Home / 525,929.60-788,894.40-315,459.20

Finding the Fourth Proportional to 525,929.60, 788,894.40 and 315,459.20

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Solution

The fourth proportional to 525,929.60, 788,894.40 and 315,459.20 is: 473,188.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,929.60 : 788,894.40 = 315,459.20 : x
  2. Step 2: Convert to fraction form
    525,929.60/788,894.40 = 315,459.20/x
  3. Step 3: Cross multiply
    525,929.60x = 788,894.40 × 315,459.20
  4. Step 4: Simplify right side
    525,929.60x = 248,863,996,308.48
  5. Step 5: Solve for x
    x = 248,863,996,308.48/525,929.60
  6. Step 6: Final answer
    x = 473,188.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.