Home / 742,400.40-1,113,600.60-553,443.60

Finding the Fourth Proportional to 742,400.40, 1,113,600.60 and 553,443.60

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Solution

The fourth proportional to 742,400.40, 1,113,600.60 and 553,443.60 is: 830,165.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,400.40 : 1,113,600.60 = 553,443.60 : x
  2. Step 2: Convert to fraction form
    742,400.40/1,113,600.60 = 553,443.60/x
  3. Step 3: Cross multiply
    742,400.40x = 1,113,600.60 × 553,443.60
  4. Step 4: Simplify right side
    742,400.40x = 616,315,125,026.16
  5. Step 5: Solve for x
    x = 616,315,125,026.16/742,400.40
  6. Step 6: Final answer
    x = 830,165.40

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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.