Finding the Fourth Proportional to 708,386.76, 977,574.09 and 402,463.67
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Solution
The fourth proportional to 708,386.76, 977,574.09 and 402,463.67 is: 555,400.07
Step by Step Solution
- Step 1: Write the proportion equation
708,386.76 : 977,574.09 = 402,463.67 : x - Step 2: Convert to fraction form
708,386.76/977,574.09 = 402,463.67/x - Step 3: Cross multiply
708,386.76x = 977,574.09 × 402,463.67 - Step 4: Simplify right side
708,386.76x = 393,438,055,958.31 - Step 5: Solve for x
x = 393,438,055,958.31/708,386.76 - Step 6: Final answer
x = 555,400.07
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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.