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Finding the Fourth Proportional to 708,726.76, 977,248.34 and 579,263.40

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Solution

The fourth proportional to 708,726.76, 977,248.34 and 579,263.40 is: 798,734.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,726.76 : 977,248.34 = 579,263.40 : x
  2. Step 2: Convert to fraction form
    708,726.76/977,248.34 = 579,263.40/x
  3. Step 3: Cross multiply
    708,726.76x = 977,248.34 × 579,263.40
  4. Step 4: Simplify right side
    708,726.76x = 566,084,196,072.76
  5. Step 5: Solve for x
    x = 566,084,196,072.76/708,726.76
  6. Step 6: Final answer
    x = 798,734.05

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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.