Home / 802,328.40-1,107,068.04-515,782.80

Finding the Fourth Proportional to 802,328.40, 1,107,068.04 and 515,782.80

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Solution

The fourth proportional to 802,328.40, 1,107,068.04 and 515,782.80 is: 711,686.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,328.40 : 1,107,068.04 = 515,782.80 : x
  2. Step 2: Convert to fraction form
    802,328.40/1,107,068.04 = 515,782.80/x
  3. Step 3: Cross multiply
    802,328.40x = 1,107,068.04 × 515,782.80
  4. Step 4: Simplify right side
    802,328.40x = 571,006,653,461.71
  5. Step 5: Solve for x
    x = 571,006,653,461.71/802,328.40
  6. Step 6: Final answer
    x = 711,686.95

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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.