Home / 770,465.60-1,155,698.40-487,030.40

Finding the Fourth Proportional to 770,465.60, 1,155,698.40 and 487,030.40

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Solution

The fourth proportional to 770,465.60, 1,155,698.40 and 487,030.40 is: 730,545.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,465.60 : 1,155,698.40 = 487,030.40 : x
  2. Step 2: Convert to fraction form
    770,465.60/1,155,698.40 = 487,030.40/x
  3. Step 3: Cross multiply
    770,465.60x = 1,155,698.40 × 487,030.40
  4. Step 4: Simplify right side
    770,465.60x = 562,860,254,031.36
  5. Step 5: Solve for x
    x = 562,860,254,031.36/770,465.60
  6. Step 6: Final answer
    x = 730,545.60

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Double scale
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Similar ratio
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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.