Home / 830,661.47-1,146,312.65-448,688.25

Finding the Fourth Proportional to 830,661.47, 1,146,312.65 and 448,688.25

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Solution

The fourth proportional to 830,661.47, 1,146,312.65 and 448,688.25 is: 619,189.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,661.47 : 1,146,312.65 = 448,688.25 : x
  2. Step 2: Convert to fraction form
    830,661.47/1,146,312.65 = 448,688.25/x
  3. Step 3: Cross multiply
    830,661.47x = 1,146,312.65 × 448,688.25
  4. Step 4: Simplify right side
    830,661.47x = 514,337,014,637.92
  5. Step 5: Solve for x
    x = 514,337,014,637.92/830,661.47
  6. Step 6: Final answer
    x = 619,189.69

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Double scale
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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.