Home / 487,780-750,688

Finding the Third Proportional to 487,780 and 750,688

Calculator

Solution

The third proportional to 487,780 and 750,688 is: 1,155,300.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,780 : 750,688 = 750,688 : x
  2. Step 2: Convert to fraction form
    487,780/750,688 = 750,688/x
  3. Step 3: Cross multiply
    487,780x = 750,688 × 750,688
  4. Step 4: Simplify right side
    487,780x = 563,532,473,344
  5. Step 5: Solve for x
    x = 563,532,473,344/487,780
  6. Step 6: Final answer
    x = 1,155,300.49

Related Problems

Find third proportional to 243,890 and 375,344
Half scale
Find third proportional to 975,560 and 1,501,376
Double scale
Find third proportional to 487,782 and 750,691
Similar ratio
Find third proportional to 731,670 and 1,126,032
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.