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Finding the Fourth Proportional to 526,897.60, 788,013.60 and 442,916.80

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Solution

The fourth proportional to 526,897.60, 788,013.60 and 442,916.80 is: 662,414.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,897.60 : 788,013.60 = 442,916.80 : x
  2. Step 2: Convert to fraction form
    526,897.60/788,013.60 = 442,916.80/x
  3. Step 3: Cross multiply
    526,897.60x = 788,013.60 × 442,916.80
  4. Step 4: Simplify right side
    526,897.60x = 349,024,462,068.48
  5. Step 5: Solve for x
    x = 349,024,462,068.48/526,897.60
  6. Step 6: Final answer
    x = 662,414.22

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1.5x scale

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.