Home / 1,020,430.61-1,408,158.90-561,502.26

Finding the Fourth Proportional to 1,020,430.61, 1,408,158.90 and 561,502.26

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Solution

The fourth proportional to 1,020,430.61, 1,408,158.90 and 561,502.26 is: 774,853.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,430.61 : 1,408,158.90 = 561,502.26 : x
  2. Step 2: Convert to fraction form
    1,020,430.61/1,408,158.90 = 561,502.26/x
  3. Step 3: Cross multiply
    1,020,430.61x = 1,408,158.90 × 561,502.26
  4. Step 4: Simplify right side
    1,020,430.61x = 790,684,404,789.11
  5. Step 5: Solve for x
    x = 790,684,404,789.11/1,020,430.61
  6. Step 6: Final answer
    x = 774,853.68

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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.