Finding the Fourth Proportional to 710,155.10, 979,364.99 and 555,126.87
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Solution
The fourth proportional to 710,155.10, 979,364.99 and 555,126.87 is: 765,567.72
Step by Step Solution
- Step 1: Write the proportion equation
710,155.10 : 979,364.99 = 555,126.87 : x - Step 2: Convert to fraction form
710,155.10/979,364.99 = 555,126.87/x - Step 3: Cross multiply
710,155.10x = 979,364.99 × 555,126.87 - Step 4: Simplify right side
710,155.10x = 543,671,818,710.65 - Step 5: Solve for x
x = 543,671,818,710.65/710,155.10 - Step 6: Final answer
x = 765,567.72
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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.