Finding the Fourth Proportional to 688,730.97, 1,031,378.29 and 435,246.74
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Solution
The fourth proportional to 688,730.97, 1,031,378.29 and 435,246.74 is: 651,784.31
Step by Step Solution
- Step 1: Write the proportion equation
688,730.97 : 1,031,378.29 = 435,246.74 : x - Step 2: Convert to fraction form
688,730.97/1,031,378.29 = 435,246.74/x - Step 3: Cross multiply
688,730.97x = 1,031,378.29 × 435,246.74 - Step 4: Simplify right side
688,730.97x = 448,904,038,429.28 - Step 5: Solve for x
x = 448,904,038,429.28/688,730.97 - Step 6: Final answer
x = 651,784.31
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.