Home / 1,020,430.22-1,408,158.39-561,501.89

Finding the Fourth Proportional to 1,020,430.22, 1,408,158.39 and 561,501.89

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Solution

The fourth proportional to 1,020,430.22, 1,408,158.39 and 561,501.89 is: 774,853.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,430.22 : 1,408,158.39 = 561,501.89 : x
  2. Step 2: Convert to fraction form
    1,020,430.22/1,408,158.39 = 561,501.89/x
  3. Step 3: Cross multiply
    1,020,430.22x = 1,408,158.39 × 561,501.89
  4. Step 4: Simplify right side
    1,020,430.22x = 790,683,590,363.57
  5. Step 5: Solve for x
    x = 790,683,590,363.57/1,020,430.22
  6. Step 6: Final answer
    x = 774,853.17

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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.