Home / 1,006,430.76-1,387,371.78-666,308.52

Finding the Fourth Proportional to 1,006,430.76, 1,387,371.78 and 666,308.52

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Solution

The fourth proportional to 1,006,430.76, 1,387,371.78 and 666,308.52 is: 918,510.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,006,430.76 : 1,387,371.78 = 666,308.52 : x
  2. Step 2: Convert to fraction form
    1,006,430.76/1,387,371.78 = 666,308.52/x
  3. Step 3: Cross multiply
    1,006,430.76x = 1,387,371.78 × 666,308.52
  4. Step 4: Simplify right side
    1,006,430.76x = 924,417,637,421.57
  5. Step 5: Solve for x
    x = 924,417,637,421.57/1,006,430.76
  6. Step 6: Final answer
    x = 918,510.91

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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.