Home / 760,518-1,141,898.43-424,215.72

Finding the Fourth Proportional to 760,518, 1,141,898.43 and 424,215.72

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Solution

The fourth proportional to 760,518, 1,141,898.43 and 424,215.72 is: 636,949.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,518 : 1,141,898.43 = 424,215.72 : x
  2. Step 2: Convert to fraction form
    760,518/1,141,898.43 = 424,215.72/x
  3. Step 3: Cross multiply
    760,518x = 1,141,898.43 × 424,215.72
  4. Step 4: Simplify right side
    760,518x = 484,411,264,649.32
  5. Step 5: Solve for x
    x = 484,411,264,649.32/760,518
  6. Step 6: Final answer
    x = 636,949.11

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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.