Home / 316,020-487,530

Finding the Third Proportional to 316,020 and 487,530

Calculator

Solution

The third proportional to 316,020 and 487,530 is: 752,121.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,020 : 487,530 = 487,530 : x
  2. Step 2: Convert to fraction form
    316,020/487,530 = 487,530/x
  3. Step 3: Cross multiply
    316,020x = 487,530 × 487,530
  4. Step 4: Simplify right side
    316,020x = 237,685,500,900
  5. Step 5: Solve for x
    x = 237,685,500,900/316,020
  6. Step 6: Final answer
    x = 752,121.70

Related Problems

Find third proportional to 158,010 and 243,765
Half scale
Find third proportional to 632,040 and 975,060
Double scale
Find third proportional to 316,022 and 487,533
Similar ratio
Find third proportional to 474,030 and 731,295
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.