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Finding the Fourth Proportional to 672,730.72, 928,434 and 502,669.60

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Solution

The fourth proportional to 672,730.72, 928,434 and 502,669.60 is: 693,733.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,730.72 : 928,434 = 502,669.60 : x
  2. Step 2: Convert to fraction form
    672,730.72/928,434 = 502,669.60/x
  3. Step 3: Cross multiply
    672,730.72x = 928,434 × 502,669.60
  4. Step 4: Simplify right side
    672,730.72x = 466,695,547,406.40
  5. Step 5: Solve for x
    x = 466,695,547,406.40/672,730.72
  6. Step 6: Final answer
    x = 693,733.07

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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.