Home / 379,931.60-569,897.40-377,307.20

Finding the Fourth Proportional to 379,931.60, 569,897.40 and 377,307.20

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Solution

The fourth proportional to 379,931.60, 569,897.40 and 377,307.20 is: 565,960.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,931.60 : 569,897.40 = 377,307.20 : x
  2. Step 2: Convert to fraction form
    379,931.60/569,897.40 = 377,307.20/x
  3. Step 3: Cross multiply
    379,931.60x = 569,897.40 × 377,307.20
  4. Step 4: Simplify right side
    379,931.60x = 215,026,392,281.28
  5. Step 5: Solve for x
    x = 215,026,392,281.28/379,931.60
  6. Step 6: Final answer
    x = 565,960.80

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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.